Got tone? JamUp is delightful way to jam and practice on your iPad and iPhone.

- Over 10,000 artists, factory and users presets in ToneCloud Sharing
- Designed together with BIAS app to create your ultimate guitar amp
- Featured by Macworld, Premier Guitar, Guitar World, Guitar Player, Guitarist

JamUp XT comes with 1 amp and 6 effects. JamUp Pro XT adds fully 6 amps and 16 stomp-box and premium rack effects - including distortion, compression, tape delay, tremolo and spring reverb. Both JamUp XT and JamUp Pro XT include Jam player, phrase sampler, ToneSharing, preset manager, 8-track recorder (optional), live-view, tuner and metronome.

All the amps and effects can be arranged with the easy to use drag-and-drop interface, simply move them around to create your own unique signal chain. JamUp offers the best sounding and studio quality collection of amp and effect models, with the optional expansion packs, it features 52 amp channels and 50 classic effects.

Each amp model was carefully measured and analyzed based on the actual unit, and it was developed with Positive Grid's MESH Multi-Stage Modeling Technology, it offers significant sonic improvement than other digital amp modelers, with dead-on accuracy and tube-like touch and feel.

The modeled sounds are just part of what JamUp has to offer. The Jam Player module makes it a snap to import songs from your iTunes library to jam along with, and you can adjust the tempo and pitch with the high-fidelity time-stretching engine. There’s the sound-on-sound phrase sampler, which lets you easily record and layer looped parts. What’s more, with the optional 8-track recorder, built-in tuner and metronome, it delivers a complete professional processing and recording solution.

ToneSharing allows users to create, share and download custom presets right inside JamUp. You can check out presets from top artists, staff picks, or user created tones from all over the world. The tone-creation possibilities of this new platform are virtually infinite.

JamUp for iPad, now integrates seamlessly with Positive Grid's new BIAS - Amp Designer and Modeler app, expanding JamUp into a powerful and completely unified professional guitar system for live use, recording and jamming. BIAS starts with stunning replications of 36 of the most sought-after vintage and modern amps in rock ‘n’ roll history and then lets you dive deep into the guts of their gear to tweak every possible aspect of their architecture. Swap out the tubes, preamp, transformer, tone stacks, cab and mic—even change the tube’s bias—to create your dream amp and distinctive signature sound.

- Realtime Guitar/Bass Amp and Multi-Effects processor
- JamUp iPad seamlessly integrated with BIAS for iPad - the ultimate amp designer and modeler
- Run 7 simultaneous amp and effect models
- Drag and drop signal path for easy tone creation
- JamUp XT includes 1 amp and 6 effects, JamUp Pro XT includes 6 amp and 16 premium effects
- In total 52 amp channels and 50 effect models (via in-app purchase expansion packs)
- Complete 8-Track Recorder System (via in-app purchase)
- Phrase Sampler with undo feature, start mode selection, synchronized metronome
- iTunes Jam player to access your iTunes library with time stretching (pitch/speed) engine
- ToneSharing, download over 10,000 artist & user presets, or share your own
- 128 slot preset manager
- Live-View control page
- Built-in Tuner/Metronome
- MIDI learning and assignment
- Audio Copy/Paste
- Audiobus support in 3 slots
- And much, much more...

For iPhone7 users: you need a lightning interface with output to use this Positive Grid's app. For more information, please visit

More Information
Twitter: @PositiveGrid

What's New

Version 3.6.30

Hi There,

Thanks for your Feedback! On this new update we support importing our newly released BIAS Amp with reverb feature. We also fixed some minor bugs with Audiobus integration.

Our Black Friday Promotion begins now, please check out: for more information.

Rock On!
Team Positive Grid

Customer Reviews

4.4 out of 5

17 Ratings

17 Ratings

Falling in love with this

Jennie the Jesus-lover

It's ethereal fun using the delay and plate reverb effects and good to see that it can record my vocals when the iRig isn't plugged in. And I love that it loops the recording you did so that you can keep listening to it and the dubbing is fantastic. I find my recording snippets get stuck in me head the rest of the day haha. I'm having a ball so far thank you. ☺️🎶🎸♥️🌸🌱

Update: I'm noticing an awful long loud distorted him when I use the delay effect and I can't figure out where it's coming from. This frustrates my recording. I hope it's fixable.

Developer Response

Hi! Please do write us on and tell us more about the problem on your device! We will follow up and find out the solution for you!

Really fun!


Pretty fun stuff! Sounds really good out of the box and sounds even better with more tweaking! I’d be careful if you have active pickups...sometimes it’s too hot for the app and you get a really loud screeching feedback sound. But overall really neat! I use an irig2 into my iPhone SE. I do recommend getting the bias app with this too. That will REALLY make it sound better. I use it for recording and just playing late at night without disturbing anyone!

Holy cow!!!


Blown away by the free app. Not sure I could handle the pro app. I don’t think there is a more accurate representation of a plexi on any of these type of apps! Great job!! The tone is pretty amazing even through my cheap headphones!


Positive Grid Inc
296.9 MB
Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.
English, Japanese
Age Rating
Rated 4+
© 2015 Positive Grid Inc
In-App Purchases
  1. JamUp Pro Upgrade $19.99
  2. Metal Expansion Pack II $9.99
  3. Metal Expansion Pack $9.99


  • Family Sharing

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

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