This is about to get released during 2019 but the developer want to Beta test some more.

It has been released on iOS for awhile and got a lot of praise.

​Have been testing it and like it a lot.

It is easy to use but can get complex, intriguing and useful results.

It is midi compatible which is great as it is an app that can give unique timbres that is hard to get with traditional synthesis. Had to use a Midi to USB and then connect it to a USB OTG cable on the device used.
​(If not having an Midi to USB cable and thinking of getting one, please investigate a little bit before buying, there is cheap ones that do not work... Chinese, Ebay, Amazon etc...). 

The app is a lot of fun at the expense of CPU... So a good device is needed with Android Oreo or later.

Think to get an idea of the app take a look at the videos down below...

To get into the Beta write the developer here:
deltavaudio@gmail.com

​Website:
www.deltavaudio.com/

It will be one of the big releases 2019 for sure.

There was some time ago since I tried this but it was pretty useless as it was using a older Android version and specs than the devices at the time and as such regarding the more demanding apps could not be used.
With the Beta they have stepped up their game to Android Nougat and am consideering to install it again...
There is a free and paid version of Bluestacks and the free version do not limit the functionality of the apps...
If it works good it is a nice back up to have if a device gets lost or broken. Just to be able to continue using favorite apps.

To check it out go here:

www.bluestacks.com/download-android-n.html

There has been some waiting for this since the development was at 95%. 
As usual there is a lot of improvements and with a couple of them being a little bit leftfield.

The biggest so far is the sampler update which brings a lot of more functionality and possibilities to it. Just check out the video and as you can see it is possible to use effects modules directly in the sampler, with envelopes (amongst other things)!!! 

There is supposed to come some more stuff that is not announced yet... suspect that it involves more Pixilang integration as there already is some ways to use Pixilang inside Sunvox for some cool things...

To test it on a PC/Mac/Linux go here (aso a list of all the new stuff):
http://www.warmplace.ru/forum/viewtopic.php?f=16&t=4428

Reacatable will release a new drum machine by the 15th of November.
If this is something and there is an itch to try out right now go here:

​http://reactable.com/snap-beta/

Some new additions already!

v1.9.2 BETA2 (23 oct 2016):

• Sampler: new option "Stop recording on project stop";
• Analog Generator: new waveform "Drawn with spline interpolation";
• MultiCtl: new controller "OUT offset";
• new module Velocity2Ctl: converts the velocity parameter of the incoming notes to the controller values (in some another connected module);
• new keyboard shortcut: CTRL + 4 - unmute all modules;
• new version of SunVox library for developers;
• bugs fixed.

​Good addition to the Android music apps. Have been out on iOS for a while and the video in the end is showing the iOS version.
Like that it is easy laid out and can record and edit samples as well plus a decent amount of effects.
So it is possible to download the app already as Beta without having to sign up as a Beta tester.
Just go to the Play page and install:
https://play.google.com/store/apps/details?id=com.mixvibes.remixlive

Google Play info:

Try Remixlive as part of the public beta and get discounted prices on all in-app purchases!This is a beta version of Remixlive for Android, in the process of being tested before its official release and it may contain defects. Thank you for your feedback and for helping us to improve Remixlive :-)
The essential app for instant remixing, powered by pro samples. Remix music with synced loops, sounds & FX.
Mixvibes, the pioneer of digital DJing, introduces the perfect remix toolbox: lay down samples on a grid of pads and tweak them in seconds. Don't have any production hardware? Remixlive is all you need to turn ideas into high-quality tracks.
Want to create unique songs? Record live input through the device's microphone and capture any sound, voice or instrument. Fine-tune your samples like in a DAW production software by editing their length and envelope (ADSR). Play several samples per column in multiple mode to create rich and layered sounds.
Remixlive is optimized for live performance: change the tempo, adjust samples' tone or play them in reverse mode, all in real time!
/// PRO-SOUNDING SAMPLES
• Grid: 24 pads on mobile, 48 on phablets & tablets.
• 48 samples per pack: beats, basslines, melodies, vocals and FX samples. 
• 24 sample packs, ranging from Hip-Hop to Dubstep - and more to come. 
• Artist pack by legendary DJ/producer Carl Cox and more to be added. 
• Create new packs by mixing and matching samples from existing packs. 
• Colored pads: choose among 16 colors to customize your grid.
/// REMIX TOOLBOX
• Instant FX pad: Delay, Filter, Flanger, Reverb, and many more.
• Control levels, filters, Mute and Solo on each channel.
• Professional-sounding three-band EQ on each channel (phablet & tablet only).
• Loop your track using the different beat-repeat pads, from 2 bars down to a single beat.
• Live BPM control (time stretching): change the tempo on the fly without changing the pitch.
• Multiple Mode: play several pads per column simultaneously.
• Trigger an entire line of samples at once with a simple swipe across the screen. 
• Record your performance in mp4.
• Share your recordings via email & SoundCloud, or open them in other apps.
• Tempo tap: tap a beat to adjust the Master BPM value.
/// EDIT SAMPLES
• Edit Play mode (loop, one-shot, gate), Quantize, Gain, ADSR, Pan, Loop Division, Reverse.
• New Retrigger mode: tap on a sample to replay it from the beginning.
• Import your own samples directly from your library (WAV, AAC, M4A, MP3, 16/24 bits, 32 seconds max). 
• Record any sound or voice through the device's mic or from​ any Android-compatible microphone or sound card. 
• Load, move and duplicate any sample, anywhere on the grid.
• Transpose: raise or lower the tone of your samples.
• Audio limiter: avoid saturation.
• Search all samples or browse samples by category: Packs, Loops, Sounds or User.
And, last but not least, the app is universal: buy In-App Payments once and use them on your mobile, phablet & tablet.

It is only a Beta for Windows, Linux (x68, x68_64, arm, arm64), OSX and Windows Mobile.
http://warmplace.ru/forum/viewtopic.php?f=16&t=4171&p=14374#p14374​
Was wondering when there was going to be a new SunVox update lately and here it is!
There is a lot of new things a s usual and a lot of them will not be exciting until put to good use.
Here is one of the new things that mentally I can not see how it would be useful but probably will be surprised when putting it into action!

• new module Pitch2Ctl: converts the incoming notes to the controller values (in some another connected module);
  

One cool thing that Mr Nightradio already used in his Palmsounds birthday video is  the new viualising mode.

​What is in this Beta:

 v1.9.2 BETA1 (10 oct 2016):

• Windows (7 and higher): multitouch support;
• Linux (x86_64 only): multitouch support;
• Linux: arm64 architecture support (tested on PINE64 64-bit Single Board Computer);
• Linux: screen rotation support;
• new module Pitch2Ctl: converts the incoming notes to the controller values (in some another connected module);
• new project parameter - "Time grid" (number of lines per grid cell);
• add option "nowin" to the sunvox_config.ini if you want to launch SunVox without the window (pure console mode without UI);
• Main SunVox Menu: new function "Merge project" (load project over the current);
• Timeline: target pointer (like in the Module View) has been added; use it to choose where to place the new pattern(s);
• Timeline: now the file is used for the pattern copy-buffer; so you can paste even after the SunVox restart;
• Analog Generator: new options "Retain phase" (don't reset the phase) and "Random phase";
• Analog Generator: new options "Filter frequency = note frequency" and "Velocity-dependent filter resonance"; see the analog_gen4 and analog_gen5 examples;
• MultiSynth: new button "Set" (set exact values of the curve);
• Vibrato: new controller "Exponential amplitude";
• Kicker: sine waveform has been added;
• LFO: random (noise) waveform has been added;
• Loop: new controller "Mode" (normal/ping-pong loop playback); see the loop2 example;
• MetaModule: optimized interface + default user controller names;
• improved MIDI Import and Export: channel/program/bank/controller support; new timing algorithm;
• ability to switch between the text fields using the TAB/SHIFT+TAB keys;
• new oscilloscope mode (module visualizer) - XY (X = left channel; Y = right channel);
• now all notes are visible on the musical keyboard: expand it up to see the full range;
• Module View (Routing): new function "Find" (find a module by name);
• Pattern Editor: improved hints;
• Pattern Editor: click on some event (note or some other command) and the corresponding module will be highlighted;
• Pattern Properties: new buttons "Shrink /2" and "Expand *2" has been added;
• Preferences -> Main: new option "Make project backup before the first overwrite";
• Preferences -> Timeline: new option "Show line numbers from ...";
• Preferences -> Timeline: new option "Grid cell size";
• Preferences -> Interface: new option "Double click time" (in ms);
• Preferences -> Interface -> Scale: new parameter "Font scale";
• new keyboard shortcut: CTRL + 1 - toggle mute (module);
• new keyboard shortcut: CTRL + 2 - toggle solo (module);
• new keyboard shortcut: CTRL + 3 - toggle bypass (module);
• new keyboard shortcut: CTRL + F - find a module;
• new instruments and effects;
• new simple project examples: analog_gen4, analog_gen5, dubstep, loop2, pitch2ctl ***;
• new song examples: Quantum Countdown, PalmSounds10;
• bugs fixed.

So to try the new Beta you need FL Studio and sign up. Otherwise it is nice to see what is coming independent if you have FL Studio or not. And as said before it is going to be a free update so that is great news if your device can handle it.
To sign up:
http://www.image-line.com/documents/news.php?entry_id=1467949082

So now there is a Beta available to use inside FL Studio as a plugin for anyone that own it.
The idea is that the projects that you make in Fl Studio Mobile are totally interchangeable with the plugin making the mobile app very desirable for FL Studio owners. Happy to report that the new version 3 are according to official sources going to be a free upgrade...

Here is what is said on their website about the Beta:

Welcome to the FL Studio Mobile 3 FL Studio Plugin.

You can now test the FL Studio FL Native version of FL Studio Mobile as a plugin. This is how we aim to allow users to work to and from the mobile version. In future we will enable 16-channel audio output from the plugin and allow drag-n-drop of MIDI / Audio data between the two.

The plan: The FL Studio Plugin version will be included Free to all FL Studio users of FL Studio Producer Edition (and up). As usual, we reserve the right to change these terms. So if you own FL Studio Mobile and register it to your IL account prior to a change-of-mind on our part, you will continue to own the FL Plugin version should we decide to sell it as an add-on purchase (for which we have no plan at the moment). Put simply: Everyone using producer edition and up, gets this plugin for free. Registering your mobile version to your IL account will guarantee it stays that way for you.

To get the Beta go here:
http://forum.image-line.com/viewtopic.php?f=100&t=159176

It came some days ago and have not had time to play with it as the time that is left of my day goes to sound design in the new great addition in G-Stomper Alpha.
​But this looks like some very useful and fun additions in the new SunVox and am longing for more time so I can check it out properly!
Mr Nightradio made two videos presenting a little bit and this looks good but think that the new Slide module must be a lot of fun too!

​To play with it now on PC/MAC/Linux go here-
http://www.warmplace.ru/forum/viewtopic.php?f=16&t=3900&p=13390#p13390

The new additions:

v1.9.1 BETA (30 dec 2015):

• new module - Glide; it is similar to the MultiSynth, but it also adds the commands of smooth transition between the notes; see the glide.sunvox example;
• advanced Interpolator has been added to the Pattern Editor: with this tool you can make a smooth transition of the values of any pattern columns, with various parameters (like the curve type, noise, etc.);
• new function in the Module View (Routing) - Replace; use it if you want to replace the selected module by some other module without loss of connections;
• MIDI buttons (with notes) linked to some SunVox actions (shortcuts) are now ignored by the synths;
• added restoring of the JACK MIDI input connections;
• Sampler (sample editor): now the Copy and Paste functions work through the file;
• Sampler (sample editor): new effects (Invert and Center) has been added;
• LFO: new controller "Duty cycle" (only for the square waveform);
• CUT operation has been added to the Module View (Routing) and the Timeline;
• new keyboard shortcut: SHIFT + > - select the next module;
• new keyboard shortcut: SHIFT + < - select the previous module;
• new keyboard shortcut: CTRL + > - select the next synth;
• new keyboard shortcut: CTRL + < - select the previous synth;
• new keyboard shortcut: CTRL + RIGHT - next module horizontally;
• new keyboard shortcut: CTRL + LEFT - previous module horizontally;
• new keyboard shortcut: CTRL + DOWN - next module vertically;
• new keyboard shortcut: CTRL + UP - previous module vertically;
• new instrument from Cube48: DrumSynth48;
• new simple song examples: glide;
• new song examples: snowfall, SunVox Compo 2015.10 Winners (KnyazIvan - fatal precession, OceanicDegree - Dreaming, echo2 - unreal love 3);
• bugs fixed.

The developer of G-Stomper have left this message and it makes me excited... as this will become the most advanced sampler/sample instrument available on Android! 

Sneak peek to the upcoming G-Stomper Studio 5.0.

Even if it's still far away from being finished, I want to give you a quick heads up about what's going on. As some of you probably know already, G-Stomper Studio and G-Stomper VA-Beast are both on the plan to get updated with a new wavetable synthesis module, which is now definitely confirmed for version 5.0.
 
Simply said, you'll be able to load samples to the synth's oscillators instead of using generated waveforms. This will finally allow to load multi-sampled instruments like orchestral sounds (grand piano, horns, strings, or whatever). And with ‘oscillators’ it’s meant both on their own.
​Each oscillator will be able to hold its own sample set, so you’ll be able to layer multiple instruments as well as cross modulate them in (almost) the same way you can do with generated waveforms. You'll be able to load multiple samples with different note ranges, but also multiple samples with different velocity ranges within the same note range, and of course it’ll use both, mono and stereo samples as known from the drum samplers.
 
As already mentioned, it's not yet finished (the first beta will probably be ready at the end of the year), but all the backend milestones have been completed already, and I’m working on the graphical user interface now.

 If you're willing to join the tests, just visit the G-Stomper Public BETA Group at
https://plus.google.com/communities/102442427759925925275 and click "ask to join".
 
Important:
The BETA tests are only available for Google Play buyers.
Only users who downloaded one or more of the following apps on Google Play will be able to grab the BETA releases.
G-Stomper Studio
G-Stomper VA-Beast
G-Stomper Rhythm

He kind of skipped over the amazing possibility to able to combine all sound generators and effects into a new sample instrument. Even more crazy interesting is that it is possible to export all notes as separate wav files to be able to make sample instruments in other samplers!
In either case this video will for sure wet your appetite for getting Caustic if you do not have it or having it for the official release.

EKT an active Caustic user have tested out the Saw synthesizer that will be in the new Caustic version 3.2. It is in active Beta now and should be ready and stable... soon?
Anyway everybody o the forum is pretty excited about this new synthesizer and it is a welcome addition.

The new synthesizer Super Saw Synth based on the Roland JP8000.


Have read some small things and was looking forward to the time/pitch stretching function with two algorithms and knew that there was going to be a new synthesizer in this version coming.
But this upgrade is definitively going to be much more than that!
Okay so not to be too excited yet as it is just in early Alpha and there will bugs to work through and it will probably take some time before the official release.
There is some very interesting options here and maybe one of the coolest things to me is the possibility to use multiple instruments/racks and generate a combined sample instrument.
This together with the modular (remember that you can also route audio into the modular)  will make Caustic a endless source of sound design. And yes the Sampler will now be stereo sample capable. 
Well better that you read the list and grok the possibilities of what will come:

New "melody helper" to lock keyboards to scales

Support for more time signatures (3/4, 4/4, 5/4, 6/4, 7/4) from the song page and in pattern editors

Allow for multi-signature tracks by unlocking measure snap in sequencer

Tool to create new PCMSynth instruments by merging your rack.

Keyable BPM

New machine: SawSynth


New effects:
 - Octaver (use with simple, single-voice machines)
 - Vibrato
 - Tremolo
 - AutoPan
 
Machine improvements:
 PCMSynth: Stereo sample support
 Modular: Added stereo out to machine input component
 Bassline: Custom waveform support
 8BitSynth: Random equation generator

Sequencer:
 Patterns show preview of notes
 Quick jump table by long-pressing sequencer machine list
 Create machine by double tapping empty slot
 Automation editor workflow visual crosshairs
 
Wave editor enhancements:
 - Stereo file support
 - Stereo recording if your device has 2 mics
 - Effect support
 - Timestretch/pitchshift
 - BPM detection
 - Insert silence
 - Time ruler w/snap
  
Added mixer + transport MIDI mappings
Added support for using MIDI notes as CC triggers

Effect bypass is now keyable
 
Improved on-screen keyboard with uppercase/lowercase support

New loop and stem export options
HD compressed texture support for skins (just Android right now)

Windows 7/8 touchscreen support
Added a few more keyboard key width options for large screens

So here is a link to sign up for Alpha testing:
https://www.facebook.com/FLStudio/posts/10154176831559041

Was thinking last week what would be in the next SunVox update!
Opened it carefully yesterday as it is like a mini-christmas for me and want to savor every last moment of the new functions and modules.
It looks like another winner!
Have not had time to fully delve into the funkiness but there is a lot of things that can be done with the right creative mind set as always when it comes to what Mr Nightradio implements.
Plus some very nice more traditional things like a second filter module with a higher quality, more midi control and import of loop points for samples etc.
And last but not least it is now possible to use it in Russian! So for people that know SunVox very well (and not living in Russia) confuse your friends and do it in Russian. Even better if the friends have never seen a tracker either as you can be appearing to be the most hipsterest hipster with or without a beard!
Download:
http://www.warmplace.ru/forum/viewtopic.php?f=16&t=3694

Description:

v1.9 BETA1 (26 jun 2015):

• additional UI language - Russian; you can change it in Preferences -> Interface;
• PalmOS and Meego are no longer supported, but you can always download SunVox 1.8.1 for these systems from warmplace.ru;
• Android: SunVox file type association (like in iOS version): now any SunVox-compatible documents (sunvox, sunsynth, midi, xm, mod, xi, etc.) can be opened from other apps (Mail, Browser, etc.);
• Android and iOS: engine is now optimized for OpenGL ES 2.0;
• new module - Feedback (see the examples);
• new module - Filter Pro (High quality IIR filter);
• number of MIDI slots (in Preferences) has been increased to 4; so you can use four MIDI controllers simultaneously;
• now any external MIDI knob can be connected to any number of SunVox controllers of any modules;
• now any SunVox shortcut can be connected to external MIDI button (Note, CC or Program Change);
• click twice (or right click) on the controller to open the new Controller Properties window;
• you can do the following operations in the new Controller Properties window: change, reset, randomize, write to pattern, assign MIDI IN;
• MultiSynth: new controller "Phase" - the starting position of the sample or the starting phase of some Generator;
• MultiCtl: new controller "Quantization" - the number of quantization levels;
• Sampler: new controller "Rec threshold" - the level at which the Sampler should start recording;
• Sampler: ability to import the loop points from WAV;
• Generator: "P.Modulation" controller has been renamed to "Freq.Modulation input";
• Filter: new controller "LFO waveform";
• Amplifier: new controller "Fine volume";
• new functions in the Pattern Editor menu: selection begin, selection end;
• slightly redesigned Pattern Editor;
• Song has been renamed to Project;
• new keyboard shortcut: SHIFT + F12 - go to beginning;
• new keyboard shortcut: SHIFT + ) - octave up;
• new keyboard shortcut: SHIFT + ( - octave down;
• new keyboard shortcut: CTRL + ( - selection begin (pattern editor);
• new keyboard shortcut: CTRL + ) - selection end (pattern editor);
• new instruments from NightRadio and Pavel Ti;
• new simple song examples: feedback, feedback2, modulator (phase modulation);
• new song examples: 4004, music_in_our_souls, awakening_city, SunVox Compo 2015.02 Winners (Sirmooge - Phalanx, Pavel Ti - Boomer, KnyazIvan - Cold Summer);
• bugs fixed.

The developers of n-Track Studio is behind this and i tis in Beta for iOS users but you can sign up here to ask to become a Beta tester for Android when it arrives:
http://songtr.ee/beta-invite.php

This application has been in Beta for a while now and it is slowly creeeping up to something interesting. 
If you missed this here is the Play Store description:

 NOTE: this product is currently in open beta. We'll collect system information if the app crashes. The free app lets you start up to 8 projects on GrooveCloud, or interact with other projects without any limitation. If you start a public session, you agree that random users could edit it.Make music with your friends in the Cloud!

GrooveCloud is a collaborative music sequencer for the Android platform that enables its users to make music together, at the same time. For example, imagine yourself arranging a drum pattern while a friend is taking care of the bass section, and while someone else is arranging or mixing the track.

The audio engine offers the following features:
-song arranger with 8 patterns of length (1-2-4-8 measures) 
-up to 8 DRUM samplers with ADSR envelope, LP and HP filter.
-up to 8 INSTRUMENT samplers, with ADSR envelope, LP and HP filter, root note and musical mode selection.
-per-note fine tuning of envelope and filter parameters
-mixer section with pan, delay and reverb sends.
-export to OGG
-more then 200 free samples

GrooveCloud was designed to respond to a specific need: having a musical sketchpad with a "cloudy" feel. Indeed, it offers a number of social features, like:

-song information is stored in Online Servers and is available almost instantly to all the song participants.
-all the manipulations made by any of the participants are propagated in few seconds to all the other participants
-users can export the song to the Community Services and post a link to the audio render on Social Networks.
-users can review the latest edits.
-users can invite friends to join the song by email.
-songs can be either be public (editable and viewable by anyone) or private (editable and viewable only by the creator or invited users)

This does sound and look intersting but for some reason it is not accepting any of my devices...
This could have to do with restrictions on country as some developers prefer to limit Beta testing so if you can not download it maybe wait until it released officially?

Play Store info:

Monophonic synthesizer application that delivers a wide variety of sounds, MIDI support, and a high quality synthesis engine.2 Alias-Free(Low noise), Stereo, Dynamic Waveform Generators (multiple synthesis techniques)
10 32-bit Wavetables
Custom designed, unique, waveforms.
FM & RM Synthesis via the modulation matrix.
Standard VA-Style Waveforms Saw, Pulse/Square(with PWM), Triangle, Sine
1 Low Pass Filter with 3 different modes.
Completely stereo signal path.
Tape-delay inspired stereo delay (can function as a flanger or chorus effect!)
Flexible Modulation Matrix
2 LFOs (Low Frequency Oscillators) 6 different waveforms with 2 built-in destination routes each. Tempo sync + retrigger along with an error control to add chaos.
4 Envelope Generators ~ ADSR
High quality sound engine. 32-bit floating point internal processing. Adjusts to individual device's optimal settings.
4 Slot Modulation Matrix
Basic MIDI support - Plug-and-play with an OTG cable. Supports pitch bend, mod wheel, velocity, after touch.
Improved latency that takes advantage of the latest Android improvements. Optimized for Kit Kat 4.4.2. See release note 1 below.
Page Based User Interface - Swipe left or right to navigate through the different parts of the synthesizer.
Keyboard designed to be easy to play and to be appropriately sized for most people's fingers.
Monophonic


Minimum System Requirements:
Android Version 4.4.2 "Kit-Kat" or later.
1 Ghz processor or better (multi-core recommended)
1 GB RAM
External speakers or headphones are recommended.


Demo Version Limitations:
Presets cannot be saved.

Release Notes:
Latency is ultimately dependent upon your hardware and version of Android. The demo version is provided so you can try it out on your particular device.
Android MIDI device support only works for MIDI controllers that require no additional or proprietary drivers. i.e. Generic MIDI Devices. Consult the Android documentation for more information.

If you want to start to play with new functions on SunVox you can do it for PC/Linux/OSX already and for Android maybe in about a month?
So far the one new thing that catched my attention is a new module called Pitch Shifter. 
My father being on a visit for some days there has been limited time to play with this new module but the little I tried has shown me that this is truly a great addition. Just scratched the surface and got some very interesting sounds made. It is an effect module so that means you can combine any type of sound generator to it in any combinations and because it has basic granular manipulations built in it allows for exciting sound sculpting in a way that is liberating being a separate effects module and not a Synthesizer module. 
We will see what users make of this and the other additions.
The other additions so far (there normally comes one or two surprises before official release)
-----------------------------------------------------------------------------------------------------------------------------------

• new module - Pitch Shifter;
• shortcut configuration (key redefinition) window has been added to the Main Menu -> Preferences -> Interface;
• customizable curve of the values has been added to MultiCtl module;
• MIDI Octave Offset option has been added to the MIDI Preferences;
• avconv (libav) support on systems without ffmpeg;
• PR (Set note period) command has been renamed to SP (Set pitch);
• main menu has been divided into two separate menus: the Main Menu (left side) and the Pattern Menu (right side);
• Play (F9) shortcut has been changed to Play/Stop;
• new keyboard shortcut: F10 - play from beginning;
• new simple song examples: crossfader;
• new song examples: Twistboy - Translucent, unspoken_words;
• bugs fixed.

-----------------------------------------------------------------------------------------------------------------------------------
Link to Beta version for PC/Linux/OSX:
http://warmplace.ru/forum/viewtopic.php?f=16&t=3263