A whole bunch of packs just got released.
Here is what can be got for a small sum...

Here is what is said:

About the Contest
#Cashmeup! We’ve lined up another amazing contest for you. Publish an original track on BandLab and you could win $500! We’ll be listening to every entry — so show us your best work.
*Scroll down for full Terms and Conditions.

Prizes
1st: 500USD
2nd – 4th: 100USD each
How we pick the winners
A judging panel from the BandLab team will select the winners.
The judge’s decision will be final—and will be based on artistic merit so get creative!
How do I win?

1. Publish a track on BandLab. You can use any device — iOS, Android or web!
2. Tag it with #cashmeup in the song description.

BandLab is FREE to use, you can sign up here, or download BandLab on your iOS or Android device.
FYI: Your entry has to be a new track, created and published during the competition period. Editing an existing song’s description with the hashtag doesn’t count! 
Contest Duration
Submit your entries by 9th August 2017, 2359 hrs (UTC +8).

Contest Terms and Conditions
The #cashmeup Music Competition (the “Competition”) is organised by BandLab Singapore Pte Ltd.

1. Participation in this Competition is subject to the terms and conditions set out herein, the Terms of Use of the Website, and such other rules, regulations and procedures prescribed by BandLab in relation to this Competition. Non-compliance with or breach of any of such terms, conditions, rules, regulations or procedures shall immediately disqualify the participant from participating in the event, and any prizes won shall be forfeited, withheld or withdrawn.
2. The Competition is open to anyone worldwide, except employees of BandLab, sponsoring companies and their agencies, and their immediate family members. Contestants must be 18 years old and above.
3. The Competition is open to individuals. By submitting an entry, each participant a) warrants that all his/her personal information provided in the submission is true, correct and complete, and that he/she is not assuming a false identity and b) accepts and agrees to the BandLab Terms & Conditions and BandLab Privacy Policy.
4. Competition starts on 8th June 2017 (UTC +8). To enter, each participant in the Competition must submit a published revision (Revision) with a #cashmeup tag in the description to the BandLab Community. Multiple submissions per participant are welcome. Each Revision must comply with the following requirements:
   
   
   1. Created and published during the competition period
   2. Have a #cashmeup tag in the description
5. Each participant warrants to BandLab that all works used in their submission are (a) original works of the participant, (b) works in the public domain and/or (c) third party owned works which are authorised or licensed for use and reproduction by BandLab in the manner set out in paragraph 14 and elsewhere in these Terms and Conditions. Each submission must clearly and separately indicate the sources of copyrighted materials, if any, used in the creation of the Revision. Participants must clear the rights to use any copyrighted works in their submission. Each participant hereby indemnifies BandLab Technologies and its related companies, officers, directors, employees, agents, representatives, partners (“BandLab Technologies Entities”) against any loss or damages suffered by BandLab and/or any of the BandLab Entities arising from any third party claims against use of the participant’s submitted Revision. 
6. BandLab reserves the right to reject any submission it deems inappropriate in its sole discretion at any time without informing the participants.
7. Online submission starts from 8th June 2017, 0001 hrs (UTC +8) and ends on 9th August, 2359 hrs (UTC +8).
8. A BandLab panel of judges will pick 4 winners. The participant submitting each winning Revision will be notified via email by 16th August 2017. Members of the public will be able to cast their vote by liking Revisions in the BandLab Community until 9th Agust 2017, 2359 hrs (UTC +8).
9. The Competition prizes will be: 1st: 500USD; 2nd – 4th: 100USD. The prizes shall only be paid out to Contestants who qualify to participate meeting all requirements here and elsewhere in the Terms and Conditions. In the event of any claims for copyright infringement against BandLab as a result of the winning Revisions posted to BandLab, BandLab reserves the right in addition to any other available remedies to forfeit the entire prize or to deduct any damages/losses payable from the prize, at its sole discretion.
10. All decisions made by BandLab in relation to this Competition are final and no enquiries, appeals, verbal or written or any other correspondence will be entertained. The participants agree to accept and abide by all decisions made by BandLab.
11. No obligation will be incurred by BandLab by reason of participation in this Competition or by reason of anything done or omitted to be done by the participants as a result of or on account of this event.
12. Each participant agrees that your personal data may be used by the BandLab Technologies group of companies to send him/her marketing and advertising materials in relation to goods and services of BandLab and its business partners, and for research and analysis. If any participant has any questions relating to BandLab’s collection, use and disclosure of his/her personal data, please contact BandLab’s Data Protection Officer at privacy@bandlab.com.
13. Each participant hereby irrevocably and unconditionally grants BandLab Technologies all consents and waivers necessary to record, use and publicise the participants’ name and other particulars, photographs, performance, appearance, likeness and/or voice (as the case may be) in any manner as BandLab Technologies shall in its sole discretion deem fit. Each participant acknowledges that BandLab Technologies shall be at liberty to publish and otherwise use any recordings made by the participant, including without limitation telephone recordings, audio recordings, visual recordings and photographs (if any), for promotional and publicity purposes (whether now or in the future) or such other purposes as BandLab Technologies may deem appropriate.
14. Participants shall not grant any interviews or discuss with any member of the press or other media his/her participation in the Competition, without first notifying and obtaining the prior written consent of BandLab.
15. BandLab reserves the right to change, amend or add to these terms and conditions without prior notice. BandLab further reserves the right, without any liability on its part whatsoever, to cancel, postpone, terminate, suspend or in any other way cease this Competition at any time without prior notice.
16. Each participant expressly acknowledges and agrees that BandLab, its related/affiliated companies and their respective officers, employees and agents shall not be liable to any of the participants for any claim, liability, damages, cost, loss or expense whatsoever or howsoever caused arising directly or indirectly in connection with his/her participation in the Competition, or arising from compliance with these terms and conditions.
17. These terms and conditions and this event shall be governed by and construed in accordance with Singapore laws.

I liked this one and it worked for better or worse in its own peculiar way with a more automatic sequencing of notes which had to be recorded in pattern presets or made beforehand.
This leads to a different results that may not have come up otherwise.
In either case now it is possible to sequence notes as in most other apps if desired.
(I do recommend to fuck around with the recording of pre programmed sequences though and see what happens). It is also possible to load your own drum samples as well to and that is always a good thing.
There is three synthesizers built into the app and they all come with a decent amount of controls. The drums are sampled but you can tune them and do some other changes to them.

Here is the Google Play info:

WHAT'S NEW- improved track saving
- note editing
- mixer
- accessible storage directory, manage saves, exports and drumsamples
- MIDI over USB (requires Android 6.0)

Beatonal is a virtual groovebox and music maker app, enabling you to easily create and share your musical ideas using the built-in synthesizer and drum machine.
Create loops using the eight customizable rhythmic drumpads, and effortlessly sketch chord progressions and melodies with the pattern-based rhythmic keyboards.

This app is free to try, but requires an in-app purchase to unlock all advanced features and project saving.

other features include:
- 4 audio channels: drum machine, base, chords and lead
- Input is automatically fixed to a user selectable scale
- Minimal audio latency
- Contains demo tracks to get you started
- Analog synth with two oscillators, FM, AM and pitch modulation, lowpass filter, and various effects
- Contains 60 built-in synth presets, but you can also create and store your own presets
- Store tracks on your device
- User friendly track sharing through track-url's
- Export track as MIDI so you can continue your work inside other apps or a DAW
- Export track as wav
- Small app size, runs on virtually all android devices (Android 2.3 and higher)
- Send MIDI over USB so you can play live music on your pc with low latency (requires Android 6.0)
- Import your own drumsamples

Think there is only Caustic that have released something that clearly and thoroughly goes through an app before this. It may seem like over kill for someone that have any experience with DAW's but it must be great for anyone just starting out.
One thing that I like a lot with Audio Evolution Mobile that I think is not brought up (have not looked through all of the tutorials) is that it can send midi messages to hardware synthesizers.
Had a lot of fun sequencing and automating the one synth I have. 

This is what is coming for the next Android when it comes to audio and it looks like finally latency issues will be gone for most devices. Which it already is for some devices.
To read it all go here specially if you are a developer:
https://developer.android.com/ndk/guides/audio/aaudio/aaudio.html

Feel that this series of DRC synthesizer tutorials are becoming a real good source for learning synthesis in general. There is now pretty many of them going through famous sounds.

This is a little bit of old news but never saw it for one reason or another. It is an app for sequencing and composing with a whole lot of functions to help with all kinds theoretical issues. Have not explored it yet but it sure looks interesting. There is also a free PC version that can use VSTi's.
If you try it please leave your impressions in the comments section.

To read more in-depth about it and get the PC version go here:
https://helioworkstation.com/

Google Play:
https://play.google.com/store/apps/details?id=com.peterrudenko.helio

Helio is a cross-platform lightweight music speed-painting tool. It features linear-based sequencer with clean UI, integrated version control and more.

Time for another great update.
The biggest thing is that it now comes with Ableton Link.
Gabber heads will be happy too as the bpm now can reach 999!

Google Play info:

​WHAT'S NEW
Integrated Ableton Link for beat, phase and tempo synchronization over a wireless LAN (long press PLAY, then 'Enable Ableton Link')
New FX type: Stereo Tool
New Bypass switch for the Parametric EQs
Improved VA-Beast Unison
Increased the tempo range to 20..999bpm
Reduced the memory usage of the FX Units
Improved Latency Compensation
The OpenSL Audio System is no longer experimental
Many minor bug fixes and improvements
Full release notes at http://www.planet-h.com/g-stomper-studio/gst-whats-new/

SunVox music Youtube channel have been operating for a while now and it is good that there is a outlet for SunVox musicians to get heard. To submit music go to the channel.
In either case here is a video with a selection of music.

Transient created this with SunVox using some generative Vodou. The Download of the music comes with the SunVox file to generate your own ambient versions!
Go here to get this release/SunVox file:
https://noisyvagabond.wordpress.com/2017/05/11/quietest-chime-nvr048/

To get your SunVox music listened to by Mr Nightradio:
Are you SunVox musician? Please mark your songs with #SunVox hashtag!
And don't forget to send your tracks here: @sunvox

It is not so often lately that there is a new app and concept making an appearance. This looks like one. Have not tried it and am slightly skeptic as it seems more focused on the visual side of things but I could be wrong and it would have been good if they had a demo to try before as it is kind of expensive compared to other android apps.
But they do state that there will be a reduced free version soon.

Google Play:

Mazetools Soniface

EXPLORATION & EXPRESSION
With Mazetools: Soniface you can create various styles of electronic music. Everything based on common aspects of notation and music production. The in-app manual guides you towards a visual music experience.

HOW THE GRID WORKS?
The framework of action is a grid. Each line represents a single note. Shining lines are showing playing tones. 

X-Y CONTROLLERS & MULTI-TOUCH
Use multi-touch gestures for altering sound effects or explore the circular editing interface.

DYNAMIC SOUND MODULATION
Merge sounds and geometric shapes! Draw sound waves and automation curves freely with your finger to modify the sound effects.

GROOVE SEQUENCER
Just tap into the circle to set bass drum, snare and hi-hat steps. Easily adjust envelopes and pitch levels.

RHYTHMICAL MELODIES
Let the grid play a sequence of notes automatically using the arpeggiator interface.

LIVE MODE & SPECIAL VISUALS
Use different patterns to create song variations. Add a special kaleidoscope visual to a pattern as a highlight.

SAVE YOUR CREATIONS
You can store single Mazes, patterns or whole sessions into a set. Add one set into another and extend your playing time.

STAY CURIOUS!
We will bring spaced out updates and a reduced free version soon...

Get more information on:
https://www.mazetools.com/

Do you want to contact us? Visit our company website:
https://ectoplastic.com/WHAT'S NEW- Synthesizer based on an audiovisual grid implying common aspects of notation
- 3 way monophone drum synthesizer with envelope, pitch and noise level control and automation setup
- integrated manual
- unlimited pattern and instrument implementation
- arpeggiator interface, envelope setup & note step sequencer
- special “kaleidoscope” visual to highlight patterns
- full-screen mode
- easy composition playback
- versatile file library