What is Ratel Studio?

Ratel Studio (라텔 스튜디오) is a mobile app studio registered in Hanam, Gyeonggi-do, Korea on September 2, 2026. It develops and publishes application software, including Death Count, Cat AI Usage and Retro Recorder.

Where can I get Ratel Studio's apps?

As of October 2026, Death Count is available on Google Play and its App Store version is in review. Cat AI Usage and Retro Recorder are preparing for launch.

Do I need an account to use the apps?

No. Ratel Studio's apps work without a Ratel Studio account, and records and recordings are saved on your phone. Each app's privacy policy has the details.

Mobile app studio

We make small apps people keep

Ratel Studio plans, designs and builds small apps people open every day. We ship them ourselves on Android and iOS, and keep refining them after launch.

Our apps are published on Google Play under the developer name Ratel Studio.

Apps

Death Count
On Google PlayApp Store in review

A memento mori app: reflect on the time until a date you choose, and record today before it is gone.

Google Play Privacy Terms Support
Cat AI Usage
Coming soon

Your remaining Claude and Codex limits and reset times at a glance, in a cat widget. An unofficial app that runs entirely on your device.

Privacy Support
Retro Recorder
Coming soon

A cassette recorder with just two keys, REC and PLAY. Each short recording is baked into a warm tape sound and shelved as its own cassette.

Privacy Support

How we build

No sign-up

Open the app and start. There is no Ratel Studio account to create.

Data stays on your device

Records and recordings are saved on your phone, not sent to our servers.

Many languages

Korean and English everywhere, plus Spanish and Japanese in some apps.

Company

Name: Ratel Studio (라텔 스튜디오) · sole proprietorship
Founder: Chul Kim (김철)
Business reg. no.: 192-10-03168 (Republic of Korea)
Business: Application software development and publishing
Founded: September 2, 2026
Location: Hanam, Gyeonggi-do, Republic of Korea
Contact: hello@ratelstudio.app

FAQ

What is Ratel Studio?: Ratel Studio (라텔 스튜디오) is a mobile app studio registered in Hanam, Gyeonggi-do, Korea on September 2, 2026. It develops and publishes application software, including Death Count, Cat AI Usage and Retro Recorder.
Where can I get Ratel Studio's apps?: As of October 2026, Death Count is available on Google Play and its App Store version is in review. Cat AI Usage and Retro Recorder are preparing for launch.
Do I need an account to use the apps?: No. Ratel Studio's apps work without a Ratel Studio account, and records and recordings are saved on your phone. Each app's privacy policy has the details.
How do I contact Ratel Studio?: Email hello@ratelstudio.app.