Features & Capabilities

JamUp is the #1 multi-effects processor for guitar and bass. Available for iPad and iPhone, JamUp gives you instant access to a ToneCloud® sharing community with over 10,000 presets from artists, user, and our own Positive Grid team. It’s designed to work seamlessly with BIAS Amp to create your ultimate guitar amp. With more than 3 million users worldwide, JamUp has been featured in Macworld, Premier Guitar, Guitar World, Guitar Player, and more.

The original JamUp comes equipped with one amp and six effects. JamUp Pro gives you the power of six amps and 16 premium rack and stomp-box effects, including distortion, compression, tape delay, tremolo, and spring reverb. Both JamUp and JamUp Pro include jam player, phase sampler, tone sharing, preset manager, optional 8-track recorder, live view, tuner, and metronome.

With its easy-to-use drag-and-drop interface, JamUp enables you to arrange a studio-quality collection of amps and effects models into your own custom signal chain. Get the optional expansion packs for access to a mind-boggling 52 amp channels and 50 classic effects.

Each amp model has been developed using Positive Grid’s MESH multi-stage modeling technology, and has been meticulously measured and analyzed against actual hardware. With its dead-on accuracy and tube-like touch and feel JamUp delivers dramatically improved sonic performance over other digital amp modelers.

Import songs from your iTunes library to jam along with using the Jam Player module. Adjust the tempo and pitch with the high-fidelity time-stretching engine. Easily record and layer looped parts with the sound-on-sound phrase sampler. With the built-in tuner and metronome, and optional 8-track recorder, JamUp delivers a complete, professional processing and recording solution.

Join our worldwide community with JamUp’s ToneCloud® connectivity. Create, share, and download custom presets right inside JamUp. Check out presets from top artists, staff picks, or user-created tones from all over the world.

JamUp now seamlessly integrates with Positive Grid’s BIAS Amp app, instantly expanding JamUp into a powerful and completely unified professional guitar system for live performance, recording, and jamming.

Features: ● Real-time guitar/bass amp and multi-effects processor ● Seamless integration with BIAS Amp ● Simultaneously run seven amp and effects models ● Drag-and-drop signal path for easy tone creation ● Six amps and 16 premium effects ● Additional 48 amp channels and 40 effect models (via in-app purchase expansion packs) ● Complete 8-track recorder system (via in-app purchase) ● Phrase sampler with undo feature, start module selection, and synchronized metronome ● Access to your iTunes library with time stretching (pitch/speed) engine via Jam Player module ● Tone sharing, allowing you to download over 10,000 artist and 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 more!

For iPhone 7 users: You will need a Lightning interface with an output to use this Positive Grid app. For more information, please visit: https://help.positivegrid.com/hc/en-us/articles/115003558023-How-to-set-up-with-my-iPhone-iPad-

For more information, please visit: www.positivegrid.com Twitter: @PositiveGrid facebook.com/positivegrid

User Growth & Download Statistics

App
By:
Positive Grid Inc
Rating:
4.50
(4)
0.30
Version:
3.6.42 Last updated: 2021-03-30
Version code:
841082671
Creation date:
2011-10-22
Compatible devices:
Size:
308.82MB
Price:
29.99
URLs:
Website ,Privacy policy
Full description:
See detailed description
Source:
Apple Apps Store
Data ingested on:
2026-06-04
Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.
Developed by:
Positive Grid Inc
Apple Apps Store
https://apps.apple.com/ae/app/jamup-pro/id454702113
Website:
https://www.positivegrid.com

User Reviews

JamUp Pro offers strong sound quality, realistic amp models, and a rich feature set (128 presets, pedals, tuner) with GarageBand compatibility and portability. However, many reviews report crashes, audio output problems, and feature instability, particularly after iOS updates. Perceived lack of ongoing updates and compatibility issues across iOS versions further color the experience. Overall, it’s powerful when it works but unreliable on current iOS and not actively maintained.
Pros
  • Excellent sound quality with authentic amp models and versatile tones
  • Portable and easy to transport; suitable for gigging with iRig
  • Rich feature set for a one-time purchase (128 preset slots, pedals, tuner)
  • Good GarageBand integration and strong external-output behavior
  • Overall value for money and user-friendly UI
Cons
  • Frequent crashes and instability, especially after iOS updates
  • Audio output/sound problems and some features not working consistently
  • Loopy/8-track features can crash or stop working after updates
  • App seems abandoned with few or no updates for compatibility with newer iOS versions
  • General compatibility issues across iOS 14–17 and related interface problems
Recent reviews
I used this for years exclusively to learn songs. The song audio used to play through my iPhone and iPad speakers. Around 5 years ago it stopped playing audio through the speakers. Fortunately I found other apps that plays through the device speakers and has A / B loop feature.
by Ca*****, 2026-01-15

What a waste of money. The software is so buggy, not to mention the interface is so delicate. I would never try to practice with this, not to mention gig with it. Take some advice and stick with pedals.
by Sm*****, 2025-09-04

I had this app for a few years and it worked flawlessly. Suddenly it stopped working and I contacted the support team with no real help or acceptable outcome. Uninstalled and reinstalled the app million times and nothing. i’m very disappointed.
by Gu*****, 2024-07-18
View all user reviews ›

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