PocketGK is the best bass guitar amp app for practicing with your iTunes music, supporting Pitch Shift and Slow Downer for learning!
* Built-in music player for your iTUNES MUSIC
* Time Stretch and Pitch Shift your iTunes music
* universal full screen support
* low latency DSP processing, with very short delay


PocketGK is designed in partnership with Gallien-Krueger Corporation using GK's renowned voicing filters and intuitive four band active EQ for great, easy to dial in, punchy tone.

notreble, "I've had three or four different amp modeler practice amps for my iPad, and this one is the easiest to use and sounds the best. I own a GK Mobile Bass amp, and must say that the sound is pretty true to the GK tone."

The Bass Geek, "What wins me over in this contest is the better sound for the PocketGK (which models the Gallien-Krueger amp line faithfully)."

ProMusicApps, "Given the wide app support for the iRiffPort Digital Audio Guitar Connection, and the high quality sound it produces, this is a must for guitarists working in the app world."

Blog du mac, "A Marvel to be used without moderation".

* Normal and Boost G.I.V.E. settings
* Contour, Boost, Horn, and Master Amp Controls
* Treble, Hi-Mid, Lo-Mid, and Bass EQ
* Chromatic Bass Guitar Tuner
* Adjustable Noise Gate
* Background Audio mode
* unlimited named presets
* iTunes music play along with Pitch Shift and Slow Down

What's New

Version 1.22

iOS 11 fixes

Ratings and Reviews

4.2 out of 5

79 Ratings

79 Ratings

Fabulous !

Mr. Pluck

There is no App that compares to this ! I have a G.K. 1001RB II, MB800, Neo 410, 212, and 115. I thought my cabinets were light - never thought I could get the G.K. sound in something as light as an ipad. I use it everyday and when gigging, I use it to learn last minute requests during a break. Amazing ! Support for this App is great as well. I recently contacted them and the response and fix to my issue was completed in no time at all. I'm at the point where I really don't think my musical journey would be the same without this App. Funny, but it has actually made me more money because aside from keeping you sharp with it's practice tools, it has allowed me to become a more focused and prepared bass player which keeps my phone ringing !

PocketGK WITH an iriffport


To all those who want, use and love this this app as I do, I just want to say yes, it's amazing.
I did hesitate to upgrade to a new iPhone thinking it wouldn't work anymore. I did it anyway and guess what, the app works perfectly.

I took a chance on it because well, I can't say much about recent support from pocketlabworks as the last message I ever received back was in 2013. I sent several emails about my concern with other iOS versions. No responses. Don't care. I'm not a support freak. I try things and figure it out. It works. No bugs. Maybe somewhere in the middle of the iPhone 4,5 iOS changes there were problems but I never switched until now.

I have the new iPhone 6s on iOS 9.3.1. It works better on this new iPhone than it did on my old one. If anyone has been wanting to make this move, I have taken care of the guess work for you and this company too, apparently. Use it with confidence.



Man, what a great app. Totally blew away all my expectations.
Love the ability to slow down tunes to learn them while still keeping the proper pitch. The little virtual amp sounds pretty amazing. The iRiffPort is a little pricy but you forget what you paid for it pretty fast once you start using it. You could actually use your device as a preamp for a gig with the line out on the iRiffPort and it would sound really good. Better probably than what your using unless maybe you have a GK set up already. The gate valve effect is excellent.


35.7 MB
Requires iOS 11.1 or later. Compatible with iPhone, iPad, and iPod touch.
English, Japanese
Age Rating
Rated 4+


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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