SynthPatch 4+

Old synths, new possibilities

Rationale Design LLC

Designed for iPhone

    • 4.0 • 3 Ratings
    • $3.99

iPhone Screenshots


Don't forget another setting on your non-preset synthesizer again. Quickly input your favorite synth sounds in a compact, intuitive way with SynthPatch.

SynthPatch currently supports patch creation (not synthesis) for Minimoog, SH-101, and Pro One synths.

What’s New

Version 1.1

– Fixes & improvements:
– Swipe and delete for patches has been optimized
- Fixed a crash some quick tappers in the first run experience may have encountered.

Ratings and Reviews

4.0 out of 5
3 Ratings

3 Ratings

@littlebird ,


I can finally keep my patch sheets neat and organized. No more sifting through papers. What a beautiful design to boot! I will give it 5 stars when there is a share feature.

Nutshelldj ,

More Instruments Needed

More instruments are needed. This is a great idea but it’s limited to 3 synthesizers. If additional synths were added as in app purchases, that’d be helpful.

App Privacy

The developer, Rationale Design LLC, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

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

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