Primer Synth from Audible Genius received its latest update on May 2, 2025, introducing a preset remakes feature that expands its value as both a learning and creative tool. The app has been available since October 2018 and stems directly from Syntorial, the well-regarded synth training application.
Primer Synth is a free subtractive synthesizer app for iPad, built around the same core engine used in Syntorial’s acclaimed synthesis training program. Its minimal, focused design strips synthesis down to the essentials — oscillator, filter, envelope — making it an ideal starting point for anyone learning subtractive synthesis or looking for a clean, predictable sound source. Despite its simplicity, it’s capable enough to stand on its own in productions.
Compatible with iPad as a standalone app and AUv3 plugin, Primer Synth integrates into GarageBand iPad and Logic Pro iPad workflows without friction. The latest update’s preset remakes feature lets users recreate well-known sounds as learning exercises, bridging the gap between theory and practice in a practical way.
- Simple subtractive synthesis engine with essential controls
- Oscillator, filter, envelope, and basic effects
- Designed for learning synthesis — ideal for beginners
- Preset remakes feature added in latest update
- AUv3 plugin and standalone on iPad
- Completely free with no in-app purchases
App price: Free
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