Shaper - Synthesizer 4+

Standalone + AUv3

Autumn Rock Software Development

    • 4.7 • 6 Ratings
    • $9.99



Shaper is a subtractive synthesizer specifically designed for the mobile platform. It is fully featured and capable of creating a wide range of stunning sounds. 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 graphs
- Classic analog filter
- 3-slot effect rack
- 8 built-in effects (Bitcrusher, Chorus, Delay, Groove Delay, Distortion, Filter, Phaser, Reverb)
- MIDI and MIDI learn support
- AUv3 support, every knob can be automated by the host program.
- Works great with AUM, Cubasis, Garageband and any DAW with Audio Unit support.

What’s New

Version 1.1.1

[Major 1.1 Update]
- Improved ENV & LFO.
- "Free-running” LFOs and the addition of “triplet” and “dotted” modes.
- Envelope graphs now have animated cursors showing their current positions.

- Improved routing system.
- A new routings overview page to see all the active modulation assignments.
- New visual indicator around knobs showing the range of modulations.

- Added the ability to sync tempo to host.
- Added BPM synced delay.
- Improved DSP in the core audio engine.
- Other minor UX improvements.

Ratings and Reviews

4.7 out of 5
6 Ratings

6 Ratings ,


Thanks for creating this app I think it’s super dope 👍🏼👍🏼 Feature Request: 1. Can you make it remember piano key size 2. Make the pitch slider slightly wider it’s too thin 3. Arpeggiator would be nice 4: I also wish we had the option to hide the keyboard when using it as an audio unit

Developer Response ,

Noted. Thanks for the feedback!

J .White ,


Really good synth! Hey there is a problem with the touches getting delayed at the very bottom of the screen on iPhone, probably iPad too.

Developer Response ,

Thanks for your feedback! iOS reserves a small strip of the space on the bottom of the screen for opening its control centre. That said, we do have ways to fine tune this behaviour and we will have it addressed in the next update.

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, Autumn Rock Software Development, 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

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

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