Syntheremin vs Gesture Synth
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Syntheremin
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Play the air. Syntheremin Instrument turns the space in front of your iPhone into a continuous musical instrument. Move both hands through the camera view to perform without touching the screen. PLAY CONTINUOUS PITCH Move your dominant hand horizontally through the note field. Raise or lower it to keep gliding smoothly across octaves—without the steps of a keyboard. CONDUCT THE VOLUME Raise your other hand to swell and lower it to quiet. Keep it still for a steady level, or close your fist for an immediate mute. SCULPT THE SOUND Roll your pitch wrist to sweep an analog-style filter. Roll your volume wrist to move from dry and focused to wide with a short echo. BUILD HARMONIC THREADS Touch matching fingertips to layer an octave, scale third, scale fifth, or high shimmer. Stretch the glowing connections to intensify them, then pinch a connected finger to release its voice. MADE TO BE PLAYED • Classic, Choir, and Glass synth characters • Scale-based note gravity that helps intonation while preserving glides • Live pitch lanes, note readout, and tuner • Role-colored hand tracking that shows what the instrument hears • Right- and left-handed layouts • No account, ads, or microphone access PRIVATE CAMERA PROCESSING Camera frames and hand landmarks are processed on the iPhone and are never saved or uploaded. The bundled Google MediaPipe SDK sends limited usage and performance metrics to Google; details are available in the in-app Privacy screen and privacy policy. REQUIREMENTS Syntheremin Instrument requires an iPhone with a front TrueDepth camera—the hardware used for Face ID. For the most responsive playing experience, use the built-in speaker, wired audio, or low-latency headphones.
Gesture Synth
Create music by playing notes with hand gestures and sing along to your favorite songs. Record your performances and share them instantly on social media. Explore melodies and turn your movements into a unique musical instrument.
- Play notes with hand gestures
- Select musical scales
- Sing along to songs
- Record performances
- Share to social media
- Turn hands into an instrument
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Gesture Synth is a creative music app that lets you synthesize notes from a selected musical scale using hand gestures and capture the experience on video with your synthesized sound and singing. - Choose your scale Select a scale and experiment within its notes, making it easy to create musical phrases that stay in key. - Make music with your hands Use hand gestures to play a chord from a selected scale. - Sing along Add your singing to make cover of your favorite songs. - Record your performance When you ready, record your cover that will be immediately ready to share for socials. Whether you're exploring melodies, practicing musical ideas, or simply having fun creating sound through movement, Gesture Synth turns your hands into a musical instrument.
Screenshots
Verdict
The clearest difference is chart position: Gesture Synth at #194 against Syntheremin's unranked. Syntheremin's advantage is iOS requirement (17.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Syntheremin | Gesture Synth |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.4 (31 ratings) — better |
| Number of ratings | — | 31 — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Best chart rank | — | #194 — better |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 17.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 44 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | XYK LLC | Vladislav Dugnist |
In-app purchases
Syntheremin
No in-app purchases
Gesture Synth
No in-app purchases







