Powerful synthesizer tailor-made for the mobile platform.

Shaper is a subtractive synthesizer specifically designed for the mobile platform. It is fully-featured and capable of creating a wide range of amazing-sounding patches. The user interface is intuitively laid out to ensure a smooth creative experience.

Feature highlights:
- 2 alias-free waveform oscillators and an additional noise oscillator
- 2 ENVs and 2 LFOs
- Intuitive "drag and drop" modulation assignment
- Fully configurable LFO graph
- Classic analog filter
- 3-slot effect rack
- 7 built-in effects (Bitcrusher, Chorus, Delay, Distortion, Filter, Phaser, Reverb)
- MIDI and MIDI learn support
- AUv3 support

Ratings and Reviews

5.0 out of 5
3 Ratings

3 Ratings

Codowlsky Polopumus ,

Sounds good, sleek interface - one question...

When I first loaded the synth, I could see the of the movement on at least one of the LFOs or envelopes - this was indicated by a little dot that traveled along the path as is typical when there’s a visual representation (which is hugely helpful and I personally love this feature when it’s included). But now that I’m creating my own patch, I’m not seeing any visual indicator within any of the envelopes or LFOS. When I hit a key, no movement is shown visually. Is there a way to turn this off and on? If so, how?

Super promising synth based on my limited play time, really digging it!

Edit: anyway to further implement Apple Pencil? It doesn’t really work for selections (they are highlighted but don’t change until you use a finger as opposed to pencil)

GtrGeorgeDC ,

Very Interesting!!!

Review revised 5/10/2021: Important! You need to know there is a menu under “SHAPER” in the upper left corner, which contains SAVE PATCH, LOAD PATCH,NEW PATCH, and link to the online manual. I hope this saves somebody from losing some work like I did...
Other than this, Shaper is pretty much a basic analog synth, but with some really interesting possibilities with LFO modulation. AND it looks like every parameter can be MIDI controlled within AUM... NICE!
One important missing function: Shaper needs to be able to lock its metronome to the host app (AUM, etc.); so far I have found no way to do this; I have to manually set Shaper’s BPM to match AUM. This should be addressed.
I have done a lot of interesting experimenting with this one.
Sound quality, filter, FX, all sound very good. I think this will be a fun addition.

Developer Response ,

Hi GtrGeorgeDC, thanks for the kind words, and glad you enjoy the app!

Yes, you can access the menu by clicking on the Shaper logo. There you can save / load patches, and also access the PDF manual.

App Privacy

The developer, Qiushi Jiang, 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 Collected

The developer does not collect any data from this app.

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


  • Family Sharing

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

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