Ther-i-phone
Make your device a theremin!
$2.99
Ther-i-phone makes your device into a musical instrument or sound effects generator!
Ther-i-phone allows you to play your device like a musical instrument. Touch the screen and drag to play, and move - rotate, turn, spin or accelerate - your device to change the sound in real-time!
Your device's sensors, and the position on the screen where your finger is, can be used to control different aspects of the sound - you can set up what controls what. Want vibrato only if you're facing north? You can do that.
It has two oscillators, whose pitch, waveform, vibrato, volume, and whether it uses a chromatic scale or continuous pitch, can be mapped to any sensor Ther-i-phone supports, including pitch, yaw, roll, heading, device acceleration, as well as left-to-right and up-and-down finger position.
It includes several built-in preset configurations, and has the ability to save your own presets.
Use it to make music, for weird sound effects, or as a stealthy way to produce odd sounds at unexpected times, at the touch of a finger!
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Tim Boudreau, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Tim Boudreau
- Size
- 891.9 KB
- Category
- Music
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - iPad
Requires iPadOS 18.0 or later.
• iPad Air Wi‑Fi + Cellular
• iPad mini 2 Wi‑Fi + Cellular
• iPad Air 2 Wi‑Fi + Cellular
• iPad mini 3 Wi‑Fi + Cellular
• iPad mini 4 Wi‑Fi + Cellular
• iPad Pro (12.9‑inch) Wi-Fi + Cellular
• iPad Pro (9.7‑inch) Wi‑Fi + Cellular
• iPad (5th generation) Wi‑Fi + Cellular
• iPad Pro (12.9‑inch) (2nd generation) Wi‑Fi + Cellular
• iPad Pro (10.5‑inch) Wi‑Fi + Cellular
• iPad (6th generation) Wi‑Fi + Cellular
• iPad Pro (11‑inch) Wi‑Fi + Cellular
• iPad Pro (12.9‑inch) (3rd generation) Wi‑Fi + Cellular
• iPad mini (5th generation) Wi‑Fi + Cellular
• iPad Air (3rd generation) Wi‑Fi + Cellular
• iPad (7th generation) Wi‑Fi + Cellular
• iPad Pro (11‑inch) (2nd generation) Wi‑Fi + Cellular
• iPad Pro (12.9‑inch) (4th generation) Wi‑Fi + Cellular
• iPad Air (4th generation) Wi‑Fi + Cellular
• iPad (8th generation) Wi‑Fi + Cellular
• iPad Pro (11-inch) (3rd generation) Wi‑Fi + Cellular
• iPad Pro (12.9-inch) (5th generation) Wi-Fi + Cellular
• iPad mini (6th generation) Wi-Fi + Cellular
• iPad (9th generation) Wi-Fi + Cellular
• iPad Air (5th generation) Wi‑Fi + Cellular
• iPad (10th generation) Wi‑Fi + Cellular
• iPad Pro (11‑inch) (4th generation) Wi‑Fi + Cellular
• iPad Pro (12.9‑inch) (6th generation) Wi‑Fi + Cellular
• iPad Air 11-inch (M2) Wi-Fi + Cellular
• iPad Air 13-inch (M2) Wi-Fi + Cellular
• iPad Pro 11-inch (M4) Wi-Fi + Cellular
• iPad Pro 13-inch (M4) Wi-Fi + Cellular
• iPad mini (A17 Pro) Wi-Fi + Cellular
• iPad (A16) Wi-Fi + Cellular
• iPad Air 11-inch (M3) Wi-Fi + Cellular
• iPad Air 13-inch (M3) Wi-Fi + Cellular
• iPad Pro 11-inch (M5) Wi-Fi + Cellular
• iPad Pro 13-inch (M5) Wi-Fi + Cellular
• iPad Air 11-inch (M4) Wi-Fi + Cellular
• iPad Air 13-inch (M4) Wi-Fi + Cellular
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026, Mastfrog, LLC
