Having said that the iK Multimedias apps for Android does come with pop up ads even for the paid versions!
The iRig recorder app that I have comes with two poop up ads every time I open it. Also manages to it in the most annoying way possible. Just when about to press record the pop up comes right in the middle of the record button! A little bit later comes the second pop up!
This is a big pity as of the recording apps that I tried I do like this one the best but alas do not use it because I hate publicity and specially when it also costs money.
Understand more or less if there is a little bit of publicity when there is a new product and it happens once. But this just turns me off buying any of their products and so they have succeeded in making me dislike iK Multimedia as a company... even have been thinking about not writing about their products anymore but that would not be fair as maybe there is people that like to pay for publicity and when it comes to the hardware it does not really matter except by buying their products it is also supporting their practices...