iPad Screenshots


StompBox turns your iPad into a flexible Multi FX Processor, it includes 17 effects plus a 4 Track Recorder and Media Player.

StompBox supports AudioBus and Apple’s Inter-App Audio making an excellent general purpose audio processing tool for all musicians, not just guitarists.

As seen in Apples "Love" iPad TV Commercial.

With StompBox you get the best of both worlds, a rack of professional sounding stereo effects (with far more control than simple foot pedals) and a foot controller to access a tuner and all your patches.

Simply listen through a pair of headphones, or attach to an external amplifier or hifi to truly experience the program in all its glory!

Once you have built up a library of patches, you can use the virtual foot controller to quickly and easily move between patches. The Virtual Foot controller gives instant access to all patch parameters and amp settings, with the ability to enable and disable individual effects at the touch of a button. If you want to modify an effect parameter, simply scroll the effect rack into view and make your changes.

Guitar and Bass Multi FX Processor
16 Unique Effects available
7 Types of Distortion
Chain upto 12 Simultaneous Effects
Media Player with Time Stretching
4 Track Loop Recorder (In-App Purchase)
Metronome/Chromatic Tuner
Stereo Routing
Save 12 banks of 6 patches
Virtual Foot Controller
Virtual Whammy Pedal
Tap Tempo
Compatible with range of hardware interfaces
3 Unique Skins

Many guitar apps use a form of Amp Modelling which in most cases is just fancy form of EQ. This is great for electric guitars, but not so good for accoustic. StompBox allows various amp EQ's both via the PreAmp and additional effects, but the important thing for accoutic guitar users is that these EQ's can be completely bypassed. This is where StompBox really shines, giving a faithful reproduction of accoustic instruments. This also means StompBox can be used on keyboards too.

If you have any questions or issues you can contact us on http://www.4pockets.com/support

What's New

Version 1.53

Fixed an issue with Push Notifications.
Removed the Latest News option.
Minor Bug Fixes.

Ratings and Reviews

Silky tone, new version has improved latency


I love most things about this app. The tone is silky, the controls are good. It has a nice feel. It's easy to use, and you can even dial up an Eric Johnson sound with reduced attack and good sustain. The interface design is impeccable. The variations are mind-blowing.

My first review complained heavily about latency issues, and the new version has addressed it significantly. Kudos to the programmers for doing this so quickly. There are now four latency settings. Not perfect but much better.

I said that if you fix the latency issues, I'll give you five stars. Well, they did it up to four stars. Needs a bit more work for such a high end app but well done so far.



Good tones and effects, tuner is malfunctioning in new version

The first time I've been speechless.


I've used some of the best equipment over my career and I must say this app matches all.Hats off to you guys this is without a doubt the best app I've ever used.all I can say is thanks.Anyone would be crazy to pass this by.well worth the money.


Limelight Software
24.4 MB
Requires iOS 7.0 or later. Compatible with iPad.
English, French, German, Japanese, Korean
Age Rating
Rated 4+
© Limelight Software Limited T/A 4Pockets.com
In-App Purchases
  1. Loop Station $3.99
  2. Growler $2.79
  3. Vintage Vibe $3.99


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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