GR Synth
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| Rating | Price | |||
|---|---|---|---|---|
| United Arab Emirates | <1%0 | — | AED 7.99 $2.18 | |
| Afghanistan | <1%0 | — | $1.99 | |
| Antigua And Barbuda | <1%0 | — | $1.99 | |
| Anguilla | <1%0 | — | $1.99 | |
| Albania | <1%0 | — | $1.99 | |
| Armenia | <1%0 | — | $1.99 | |
| Angola | <1%0 | — | $1.99 | |
| Argentina | <1%0 | — | $1.99 | |
| Australia | <1%0 | — | A$2.99 $2.12 | |
| Azerbaijan | <1%0 | — | $1.99 |
Description
GR Synth is a native industrial FM synthesizer for iPhone. Shape unstable machine tones with deep frequency modulation, pitch sweeps, noise, distortion, bit crushing, resonant filtering, delay, and atmospheric reverb.
Explore 21 curated, read-only built-in presets—including Kolyat calling customer service—or create personal presets that stay on your iPhone. Trigger machine phrases and individual notes, connect to a DAW through USB audio and Core MIDI, and render 48 kHz stereo WAV files for Files, AirDrop, and production workflows.
Ringtone Mode repeats the current sound while GR Synth is in the foreground. Edit the synth while it runs and each new repeat uses the latest controls. Choose 1–20 repeats and 1–30 seconds between triggers, then export the complete timed sequence as one WAV file. Ringtone Mode does not install or replace an iPhone system ringtone.
FEATURES
Native low-latency stereo synthesis
Deep FM, pitch sweeps, noise, distortion, filtering, delay, and reverb
21 bundled, read-only built-in presets
Private on-device preset saving
Foreground-only repeating signal mode with live editing
Full repeating-sequence WAV export
Core MIDI input and virtual destination
USB audio workflow for recording into a Mac DAW
Offline 16-bit, 48 kHz stereo WAV export
Sticky Play Machine Phrase control while editing sounds
No account or network connection is required.