JOE vs Quavery Theremin
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
JOE
Listen to timeless hits from the 70s, 80s, and 90s, along with engaging entertainment. This essential app keeps your favorite radio station accessible anytime, anywhere.
- Listen anytime, anywhere
- Timeless hits from the 70s, 80s, 90s
- Engaging entertainment
- Favorite radio station access
- Mobile app
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Dit is JOE, good times, great music. De JOE-app mag niet op je smartphone ontbreken. Onmisbaar als je je favoriete radiozender altijd bij je wilt hebben. Luister altijd én overal naar JOE of JOE non-stop! Wij brengen tijdloze hits uit de jaren 70, 80 en 90 die direct herkenning oproepen, afgewisseld met entertainment die raakt en bijblijft. Download nu de JOE-app en mis niets meer!
Quavery Theremin
Transform facial movements into music with this innovative instrument. Control pitch, volume, and effects using only your expressions, with a live visualizer to guide your performance. It's a touchless, private, and free way to create unique sounds.
- Facial expression to sound control
- Touchless instrument interface
- Live status panel for sound visualization
- Multiple waveforms and pitch scales
- Privacy-focused design, no data sent
- Built-in control guide
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Turn your facial expressions into sound. Quavery turns your iPhone into a face-controlled Theremin. Its TrueDepth camera tracks how you move your face and turns that movement straight into music. It's a fully touchless instrument, with nothing to learn but your own expression. HOW IT WORKS • Open your mouth to raise the pitch • Raise your eyebrows to bring up the volume • Stretch your mouth to add reverb • Stick out your tongue to add distortion • Look left to cycle through waveforms: sine, triangle, square, and sawtooth • Look right to cycle through pitch scales: continuous, pentatonic, and major Every control lives on your face, so once the camera is running, you never need to touch the screen to play. WATCH WHAT YOU'RE PLAYING A live status panel shows pitch, volume, reverb, and distortion as you shape them, so you can see exactly what your expression is doing to the sound. New to Quavery? A short control guide walks you through every expression before you start. PRIVATE BY DESIGN Your face never leaves your device. Quavery uses the camera to track your expression in real time, and nothing is ever recorded, stored, or sent anywhere. No account is required to use the app. FREE TO PLAY Quavery is free, with no ads. If you'd like to support development, there's an optional tip jar in Settings. Nothing is locked behind it. Requires an iPhone with a TrueDepth camera (iPhone X or later, excluding iPhone Duo and SE models). --- PRIVACY POLICY https://leomakkinje.nl/apps/quavery/privacy TERMS OF USE https://leomakkinje.nl/apps/quavery/terms APPLE EULA https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: JOE at none against Quavery Theremin's 3. JOE also leads on ratings volume (7 vs 1). Quavery Theremin's advantage is ads (none vs shown) and update cadence (weekly vs every 3 weeks). On price, rating, device support 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. Quavery Theremin sells 3 one-off in-app purchases. JOE asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.9 for JOE against 5.0 for Quavery Theremin. That said, the two scores are not equally well evidenced: JOE has 7 ratings behind it against 1, so its average is the more settled of the two.
JOE ships an update every 3 weeks, Quavery Theremin weekly. The most recent releases landed on October 28, 2026 and October 26, 2026 respectively.
| Parameter | JOE | Quavery Theremin |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (7 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 7 — better | 1 |
| Update frequency | Every 3 weeks | Weekly — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone | iPhone |
| Requires iOS | 16.4 — better | 16.6 |
| Further details — not scored | ||
| Size | 44 MB | 9 MB |
| Age rating | 12+ | 4+ |
| Developer | DPG Media Services | Leo Makkinje |
Customer experience
JOE
Quavery Theremin
In-app purchases
JOE
No in-app purchases
Quavery Theremin
- Small tip$0.99
- Medium tip$2.99
- Large tip$4.99









