ThumbJam 4+

Sonosaurus LLC

    • £8.99



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, even after all these years!

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 via WiFi. Copy and paste audio from other apps using AudioCopy/Paste as well the general pasteboard, via email, AudioShare, iTunes Document Sharing, Files, or open directly in another application. Supports Audiobus and InterApp Audio for streaming sound to/from other apps in real-time, including state save/restore with Audiobus 3.

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. Supports MPE input and output (and did so before it was even a thing)!

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! Go to the Sound menu under Download Samples....

What’s New

Version 2.6.11

- Removed deprecated bluetooth collaboration feature so the app will run on iOS 16
- Fixed pitch bar issues
- User imported scales are now sorted alphabetically (by filename) and are deletable now from the scales chooser
- Fixed Scala file import issue
- Fixed status bar overlap issue on older iPads, and correctly shows it on newer iPhones

Ratings and Reviews

4.7 out of 5
52 Ratings

52 Ratings

Jonnycapes ,

Still one of the very best apps EVER

I've had this app for so many years - it's still one of the simplest to use yet still delivers unparalleled expressiveness and realism for ios acoustic instruments. A bona-fide classic, and an absolutely essential and fundamental purchase for those wanting to create music on ios: a near perfect music app IMHO. The only other app I ever felt similar about was Alchemy, which sadly no longer exists in its previous majestic form: Thumbjam, like Alchemy in the past, makes it sooooooo easy and instantly gratifying to create music with that it almost feels like cheating... That's such a rare achievement, and surely a sign of truly magnificent software... 'Kin brilliant. 🤘

Swibbo ,

Pretty good

I've found this app to be both excellent and frustrating in equal measure. The sound samples are great, as realistic as many expensive sound stations or keyboards I've used. I do find the interface a bit confusing sometimes though. And also had a couple of issues exporting stuff but I think this was highlighted with a note by the developers when the new update hit (losing of data if not selected). Another thing I'd like to see addressed is the addition of a conventional keyboard layout as an option. 1 octave would be fine although it could be expanded via the "span" button to more. I'm a semi-pro musician and whilst I understand much about different scales and modes etc., I would kill the option to have a "proper keyboard" to use. Otherwise I find I'm constantly customising scales in order to remove any notes I don't want. And an easier to navigate UI would be good. Can't fault the sampling though and I have made some good sounding stuff with this so no HUGE complaints from me. Also, the recording through a mic facility where you hum or play another instrument is not entirely reliable. It seems to hit the correct notes (if you've picked the correct scale), but quite often even if there is no noise being generated and I'm in a quiet environment, there is a high note coming from which makes it fairly unusable. I've tried altering the three settings but doesn't really help. Good overall though.

Sunburst335 ,

One of the best apps on my device

This amazing app is incredible in most ways and is probably the best value for money there is on the appstore. The instruments sound beautiful and can be played so easily and with so much expression. There just isn't the time or space to go through all its many fine points and very few (if any) negative ones. I just need more time to really use this fully. The only other app to equal this is one is DrumJam, by the same developer. Thank you to the developers for producing such a gem.

App Privacy

The developer, Sonosaurus LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Usage Data
  • Diagnostics

Privacy practices may vary based on, for example, the features you use or your age. Learn More


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

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