ThumbJam is a powerful musical performance experience. You get over 40 high-quality real instruments multi-sampled exclusively for this app. Hundreds of included scales allow you to effortlessly play in any style from rock to classical, whether you are a musical novice or a seasoned professional.

Jordan Rudess, the world-renowned keyboardist for Dream Theater says:

"ThumbJam stands at the very top of the overcrowded music app world. The sounds included absolutely rival those found in pro instruments and making music on the app is a total joy. The only problem I have with this app is that I did not make it myself! Luckily, I'm able to work with the developer and offer a few good feature ideas as well as some choice sounds from my personal collection!"

Even if you've only played air guitar, ThumbJam lets you sound like a pro. Pick an instrument and jam -- with all the scales to choose from you'll never hit a wrong note. The high quality instrument samples will make you sound like you just skipped years of music lessons.

For the performing musician, this app is awesome for soloing on an instrument you didn't bring along. Play in any key, any style -- go from a string ensemble to a wailing guitar. ThumbJam was developed and tested by musicians to feel and sound like a real instrument. You'll be surprised at how expressive it can be, make sure to check out the videos and audio at

ThumbJam makes use of tilt and shake to add vibrato, tremolo, note bends, and volume swells for more realistic and expressive results. It supports up to five (eleven on iPad) simultaneous touches and up to 32 voice polyphony, for each of up to 8 loaded instruments! Delay and stereo reverb add depth to the sound, and a resonant lowpass filter gives you more tone shaping power. Put on your headphones or plug in to your home stereo to experience some of the highest quality instruments in the App Store.

Build your own loops from the ground up or import your favorites and jam from there. Layer as many loops as you want, with different instruments for each. Export your loops as audio files or Ardour DAW sessions via WiFi. Copy and paste audio from other apps using AudioCopy/Paste as well the general pasteboard, via email, AudioShare, iTunes Document Sharing, or open directly in another application. Supports Audiobus and Inter-App-Audio for streaming sound to/from other apps in real-time, including state save/restore with Audiobus2.

Extensive MIDI input and output support over WiFi or Bluetooth, with any CoreMidi compatible device, or other apps on the same iOS device with virtual MIDI. Now also supports Ableton Link for tight sync between apps on the same network.

New powerful arpeggiator feature lets you play patterns with perfect time sync, from the screen or via MIDI control.

The app includes a huge variety of scales, from western to eastern. Save your favorites for quick access, or create your own in-app. You can even import new scales in the Scala format for complete flexibility.

You can also record your own multi-sampled instruments using a built-in or attached microphone, or from file import.

Included instruments:

+ Cello, Violin, Viola
+ Upright Bass (plucked and bowed)
+ Several drumkits
+ Darabukka
+ Djembe
+ Electric Guitar
+ Electric Bass
+ Trumpet
+ Trombone
+ Tenor Sax
+ Flute
+ Low Whistle
+ Acoustic Guitar
+ Hammered Dulcimer
+ Mandolin
+ Cittern
+ Grand Piano
+ Drawbar Organ (2 types)
+ Rhodes
+ Pipe Organ
+ Synth Strings
+ Synth Choir
+ Theremin
+ Sawtooth Waveform
+ Sine Waveform
+ Triangle Waveform
And from Jordan Rudess:
+ JR Zendrix
+ JR Smooth Steel

Many more for immediate FREE download in the app including several drumkits, Mellotron, basses, banjo, tabla, ukelele, guitars and more! New instruments posted regularly.

What's New

Version 2.6.2

New in 2.6.2:

- Fixed scale lock issue introduced in 2.6.1
- Fixed user preset export issues (Prefs->Import/Export->Export Presets). Also, it now allows selecting 1 or more presets to export, via email or Open With (including AirDrop).

From 2.6.1:

- Fixed iOS 11 edge-gesture issues
- Fixed midi note input for percussion, fixed GM binding support for existing drum kits, you must redownload them from Sound->Download Samples
- Fixed Open With on iPads from Browse Audio to Export page
- Updated to latest Audiobus SDK version
- Re-added IAA generator port for host compatibility
- Fixed color bar issue when using pitch scroller
- Some possible crash fixes

Please consider updating your review for the latest version, it really helps!

Ratings and Reviews


Bud Charles

I love the freedom and customisability of ThumbJam. One of the best music making apps out there.

Must Buy, especially for composing with multiple apps


The best thing I have found about this app, apart from the great quality sampled instruments, is the background audio feature. Thumbjam is the only app I have which consistently plays background audio. This is huge for composing in multiple apps. For example, if you create a pattern in korg ims20 and want to be able to hear that pattern whilst composing another layer for the track in sunrizer synth, you simply copy the pattern from korg and paste into thumbjam, minimize thumbjam and it will keep playing when you go to sunrizer. This works with many different apps. A tip, if you do this make sure you start all the apps first and then switch between them with multitasking.

Amazing Sounds & Incredible Features!


This machine really has everything covered. From the highest quality sounds to amazing expression, and even a loop recorder.
But then you also get very comprehensive midi capabilities and full recording functionality. Also the importing and exporting options are very complete, which just makes everything possible.

The effects are powerful and the expressive capabilities really do make this a real instrument that is amazing to play. There is also a great range of scales for choosing your own specific tonal flavor.
This really is a comprehensive machine, just look at the features above and you'll realize this is really a necessity for music creation.


Sonosaurus LLC
229.7 MB
Requires iOS 8.0 or later. Compatible with iPhone, iPad and iPod touch.
Age Rating
Rated 4+
© 2018 Sonosaurus LLC


  • Family Sharing

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

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