Wotja: Generative Music System 4+

Creator Player Lab & AUv3 Host

Intermorphic Ltd.

    • 4.8 • 44 Ratings
    • Free
    • Offers In-App Purchases


Wotja is a FREE & powerful Generative Music System. Create beautiful ambient music, MIDI, text & ideas etc… or just relax with awesome 1-tap 'flows'. It’s also an AU3 Host App/Plug-in!

Love to create? Easily make ambient music, soundscapes, drones, melodies, ideas, MIDI, beats, cut-up text etc.

Want to relax? Start a 1-tap 'flow' for mix-after-mix of live relaxing music. No internet connection is needed.

Enjoy exploring & learning? Deep dive into generative MIDI composition, text-to-music, sound design, experimental music etc.

The Wotja App supports AU3 Plug-in hosting!

The App bundle includes the Wotja AU3 Plug-in.

• App (iOS*, macOS)
• AU3 Plug-in (iOS*, macOS) [1]
• Player (tvOS, watchOS)
• Safari App Extension (iOS*, macOS) [1]

*incl. iPadOS

See our quick Tutorials [6].

"Must Have Generative App", "Total game changer", "You Need this in Your Life", "Inspirational", "Unique" etc.

SSEYO Koan (1990-02), built by the Intermorphic founders, generated what came to be known as 'Generative Music'. Wotja is its evolution (intermorphic.com/wjh).


This FREE variant of Wotja is ad-free, requires no user details & operates by default in 'Lite' mode [2]. It gets rolling updates year-on-year.

'LITE+' MODE [2, 3]
Get bonus capabilities for free! Just tap the 'Store' button to unlock 'Lite+' mode. Wotja reverts to default 'Lite' mode when play stops.

- Purchase *any* Tip Jar (TJ) tip in *this* App for *it* (& associated Plug-in) to operate in 'Pro' mode for 30 days (provided you don't uninstall/reinstall *it*); or
- Purchase the relevant 'Pro' Feature Set (FS) Subscription; or
- Purchase the paid-for 'Wotja 22 Pro' App.

• All Devices - iOS/iPadOS/macOS/tvOS; Mobile Devices - iOS/iPadOS only
- 'Pro' (All Devices): $3.99
- 'Pro' (Mobile Devices): $2.99
• Use to unlock required Feature Set (FS).
• Subscription period is 1 month, auto-renewing; easy to cancel at any time.
• Prices shown are for US region & may change from time to time.
• Payment will be charged to iTunes Account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period. Subscriptions may be managed by the user & auto-renewal may be turned off by going to the user's Account Settings after purchase.


• 100s of editable generative music templates & Sound/FX presets
• 48 interdependent Cells in 12 tracks for live mixing/sequencing
• 'Flow' player for a succession of unique auto-generated mixes
• Powerful engines: Music (WME), Audio (WAE), Text (WTE) & Script (WSE)
• Incl. many IM SF2 Soundfonts
• App AU3 Plug-in Hosting [1]
• Also supported:
- Sleep timer
- Core MIDI Out/In, iCloud [iOS/macOS]
- Virtual MIDI Out/In, WAV & MIDI recording, AirPlay [All 8]
- IAA, Audiobus, Ableton Link [All 8+9]
- Text to Speech (TTS) [1]

1: Info, Reviews & Requirements: intermorphic.com/wj
2: Included Feature Sets (FS) AKA 'modes' [3]:
• 'Lite' (Default): Play time limitations; various file locks, open/save/export/import limitations & other restrictions; MIDI Ch1 Out/In only.
• 'Lite+': As 'Lite' but with some bonus capabilities e.g. 15 minute flows.
• 'Pro': ALL 'Lite' restrictions unlocked + Recordings licensed for Commercial Use (see EULA).
3: Feature Sets (FS): intermorphic.com/wjfst
4: Examples: intermorphic.com/wjrec
5: Guide: intermorphic.com/wj22ug
6: Tutorials: intermorphic.com/wjtut
7: 'Pro' apps AKA 'fullgrades': intermorphic.com/help/#fullgrade
8: Not in AU3 or tvOS/watchOS apps
9: iOS only


Something not working right? Please tell us via our Help Page 'Contact Us' options!

What’s New

Version 22.9.1

FIXED: AU3 issue where on stopping the AU3 host app, the Wotja AU3 might generate unwanted noise.

P.S. Love Wotja? You can *really* help us by giving a new rating for each app update. Thank you!

Ratings and Reviews

4.8 out of 5
44 Ratings

44 Ratings

Timo Zai ,


First of all, the developer(s) are amazingly responsive, helpful, patient, kind, and enthusiastic. Communication is a pleasure. I've used the predecessor of this unique app in the past (Liptiki) and loved it. I've also briefly checked out Wotja last year. Sadly, I was overseas and blew up my MacBook. For the past several months I missed playing with this software! Wotja is a totally different format, so it might take a couple launches for the workflow to sink-in. It's not a DAW (digital audio workstation). It's an otherworldly environment that helps inspired creativity . . . especialy within it's melodic ambient wheelhouse. Of course, users are not trapped on this new planet. We are able to use Wotja as a sketchpad and then continue developing in a DAW, if one so desires. At the very, very least . . . this app breaks through creative blockage and is FUN to use after climbing over a little learning curve. For the price . . . FREE . . . you can't beat this. I've got my eyes on the paid version for the enhanced features. Tommy Zai gives this two thumbs up.

Developer Response ,

Thank you so much for the lovely review, we really do appreciate it! We hope you continue to enjoy Wotja as we continue to evolve it :). Tim & Pete.

T.j.V. ,


Wotja can be as simple as a visual and auditory experience that mixes written words and generative music. Wotja includes many pre-generated mixes and makes it easy for you to create random mixes with just a a couple touches.

Wotja can also be a very deep modular environment where you can edit every aspect of your music and sound parameters. The music engine is very adaptive with rules and settings that you can set for how each part plays. The sound engine is where you get your hands dirty building and editing your modular “synth” creations using sound/tone sources, FX units, controllers and routing junctions.

I don’t think I’ll ever get to explore all of Wotja’s features, but I do learn new things every day with the help of Intermorphic. Anytime I hit a wall, it gets knocked down pretty quick with explanations for those little things that aren’t readily apparent to me.

If you are brave enough to take the dive into Wotja’s vast generative and modular music environment, understand that you have a vast amount of control and there is probably a setting that you can tweak to make your creation sound just the way you want.

Developer Response ,

Thank you so much for your wonderfully detailed review and we greatly appreciate you taking the time to leave it. We hope you continue to enjoy Wotja as we further evolve it and its capabilities!

Briansxx ,

Superb package for ambient music creation

Wotja a complete package for the creation of ambient, generative music. Offering complete and comprehensive control of all parameters, it makes possible gorgeous, ambient music. As someone who has been creating this kind of music for a while, Wotja enables me to achieve my vision in ways no other software can. The monthly subscription model is a total steal; if you need support, it’s fast, technically sophisticated, and patient. The latter is important as I think I have asked every dumb question I can about the software. The support people are unfailingly friendly and very helpful. If you have the ambient gene, this package is for you,

Developer Response ,

Thank you so much for your kind words - they really do mean a lot to us! Glad we were able to help, too. We hope you enjoy Wotja as we continue to develop it. With best wishes, Tim

App Privacy

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

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