Old thread here, but Iāll throw out a comment anyway! Iāve only used the touch-screen on my iPad, but that being said, these are apps Iāve used and could recommend:
For beat-making specifically, Beat Maker 3 really has most everything you could ask for.
Cubasis 3 - Arguably the best all-around DAW for the iPad IMHO, good for making beats, but not as good as Beat Maker for that purpose.
Patterning 2 - My favorite beat-making iPad app. Slightly steep learning curve, but once you know how to use it, it gives you instant beat-making success.
BeatHawk - A powerful drum machine with good sounds and a million tweakable settings.
Rock DM - Very realistic drum kits, live tweaking of complexity of beats, lots of cool classic grooves.
Pure Acid - A great acid/trance/house drum machine. No realism hereā¦ its definitely for EDM. Lots of fun, instantly rewarding.
Other apps I have that arenāt specifically beat-oriented, but are good sources for inspiration and composing:
Synthscaper: An amazing ambient/texture generator with a unique interface.
Pure Synth Platinum: Maybe the best and most realistic instrument sounds for your money you can buy for the iPad without loading huge samples.
Aparillo: Another synth with a unique live-play modulating methodology.
Drambo: Incredibly powerful and flexible modular synth. Very high learning curve.
Finally, GarageBand WOULD be a favorite if it wasnāt so neutered in the file-export area, making it useless for my purposes since I donāt use a Macā¦ but if you donāt need to export anything to PC, then the āDrummerā part of Garageband is really hard to beat.
All of the above are pretty good apps that Iāve had success with. All are stand-alone, and some are tougher than others to integrate into your iPadās DAW, and some only shine once youāve bought an expansion pack or two, but all are pretty darn good.