Eden – great flexible synth, one of the best synths for iOS
TRG-16 – sampler controlled by 16 pads
NanoStudio first released for iPhone so user interface is optimized for smaller screens. Now there are versions for Mac and PC so you can sync your projects with the desktop version. Also there is dedicated NanoSync Mac and PC software which allows you to transfer samples from desktop to NanoStudio TRG-16 sampler.