KOETRON
One-tap voice transformations
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Say hello to KOETRON. Record a short voice and tap to transform it instantly into a fun character voice. Simple and safe for kids—try it now.
KOETRON — One-tap voice transformations!
KOETRON is a simple, playful voice app where you record a short clip and transform it with a single tap. Hear your voice instantly in different styles—Plushie, Robot, Ghost, Kaiju, UFO, and more. With an easy, kid-friendly interface, everyone can enjoy quick “voice toy” fun at home or on the go. Works offline, too.
How to use
1-Tap Record to capture a short voice clip.
2-Tap your favorite Effect button.
3-The transformed voice plays right away—try it as many times as you like!
Device & settings
-Microphone access is required on first use. If you denied it, please enable the mic in your device settings.
-Adjust recording/playback volume with your device’s volume buttons.
-Recordings are processed on your device. This app does not transmit your recordings externally.
Made by Tantanto Company
We’d love to hear your feedback!
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
Added three new voice effects.
The developer, SACHIKO HAMATSU, 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 Linked to You
The following data may be collected but it is not linked to your identity:
- Identifiers
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Provider
- SACHIKO HAMATSU
- Size
- 48.3 MB
- Category
- Entertainment
- Compatibility
Requires iOS 15.6 or later.
- iPhone
Requires iOS 15.6 or later. - iPod touch
Requires iOS 15.6 or later. - Mac
Requires macOS 12.5 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English and Japanese
- Age Rating
4+
- 4+
- Contains
Advertising
- Copyright
- © 2025 Tantanto Company