Airmony vs Syntheremin
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Airmony
Transform the air into a musical instrument using your hands and the device's camera. Effortlessly create beautiful melodies and harmonies with intuitive gestures, no prior musical experience needed. Capture and share your creations with ease.
- Play music with hand gestures
- Real-time gesture tracking
- Automatic key snapping
- Built-in synth engine
- Record and share vertical clips
- No internet connection required
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Airmony turns the air in front of you into a musical instrument. Hold up a hand, and the front camera reads your gesture in real time: pinch to play a note, slide your hand left and right to move across the scale, and raise or lower it to swell the volume. Use both hands to layer chords. There is nothing to hold and nothing to connect. No musical training required. Because every gesture lands on a note that fits, complete beginners play something beautiful in their first minute, and the experience quickly turns mesmerizing. Musicians get an inspiration engine: improvise with no instrument at hand, stumble onto melodies you would never have written, and capture them as clips. Everything runs on your device. Your camera frames are processed live, on the phone, for hand tracking, and are never uploaded or sent anywhere. There is no account, no sign-up, and no network connection required to play. PLAY WITH YOUR HANDS • Pinch to play, release to stop: a natural, expressive trigger. • Move side to side to glide across the notes of a scale. • Raise and lower your hand to control volume. • Use two hands for chords and harmonies. MUSIC THAT STAYS IN KEY • Snap to a scale so every gesture lands on a musically correct note. • Choose from major, minor, pentatonic and more. • Pick your octave range and a sound that fits the mood. A REAL SYNTH ENGINE • Multiple waveforms, a built-in arpeggiator, reverb and delay. • Designed for low latency so your hands and the sound stay in sync. MADE FOR SHARING • Record a clip in one tap, framed vertically for Reels and TikTok (9:16). • A clean Airmony watermark is baked in. • Share straight to your favorite app with a caption ready to go. • Sing along with wired or Bluetooth headphones: turn Voice on before recording. The microphone is off by default. Balance your voice and the music with two faders before sharing. FREE TO PLAY, MORE INSIDE • Play for free with four moods and no playing-time limit. Record and share clips up to 20 seconds, ending on a whole musical bar. • Airmony+ (subscription or one-time lifetime purchase) unlocks all 16 moods, Pro harmony, The Beat, clips up to 3 minutes and two Face Blur styles for the main face. Review your clip before sharing. ACCESSIBLE BY DESIGN • VoiceOver support and Reduce Motion respect. • Visual cues never rely on color alone. Airmony works best in landscape with a bit of room in front of you and even lighting. Bring your hands into frame and start playing. Privacy Policy: https://airmony.app/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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.
Screenshots
Verdict
The clearest difference is in-app purchases: Syntheremin at none against Airmony's 3. Airmony's advantage is device support (3 vs 1). On price, ads and iOS requirement 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. Airmony sells 3 in-app purchases, starting at $2.99 per month. Syntheremin asks for nothing beyond the download.
| Parameter | Airmony | Syntheremin |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 4 days | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, Mac — better | iPhone |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 7 MB | 44 MB |
| Age rating | 4+ | 4+ |
| Developer | Baron Creation | XYK LLC |
In-app purchases
Airmony
- Airmony+ Monthly14 Days trial$2.991 Month
- Airmony+ Yearly$12.991 Year
- Airmony+ Lifetime$22.99
Syntheremin
No in-app purchases









