KATARU|AIラジオ

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Content rating
Everyone
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About this app

■ What is KATARU?

"Edo period food culture," "quantum mechanics," "dinosaur ecology"—simply enter a single word about a topic that interests you, and the AI ​​will continue to talk about it unilaterally, like a radio program.

No conversation required. No selection required. It just flows.

■ How to use it is simple

① Enter a single word about a topic
② The AI ​​automatically generates a script
③ The audio continues to play one after another

That's all.

■ Three unique features of KATARU

【The story never ends】
Regular podcasts are finite. KATARU generates the next chapter instantly after each chapter ends. Even if you continue listening to the same topic, the AI ​​will continue to talk about it from a new perspective each time.

【Choose your favorite topic】
Space, history, science, culture, philosophy, cooking—
Even with specific topics like "Edo-era Edoite breakfast,"
the AI ​​will talk in depth.

【No conversation required, one-sided storytelling】
Unlike AI chats where you ask questions and get answers,
KATARU continues to talk unilaterally.

While cooking, commuting, or before bed—
You don't even need to look at the screen; just listen.

■ Customize your program with voice and background music

An AI personality narrates while soothing background music plays.

With Premium, you can choose your preferred narration voice (4 male/female options) and background music (4 options + volume adjustment).

■ Automatic Selection Feature

When you can't decide what to listen to today, use the "Automatic Selection" feature.

The AI ​​automatically selects a theme based on the time of day.

Quiet philosophical themes in the evening, energetic trivia in the morning—
The perfect theme for you will play.

■ Pricing Plans

・Free Plan: Enjoy up to 30 minutes per day
・Premium (¥480/month / ¥3,800/year):
Unlimited playback + voice and background music switching and volume adjustment

■ Recommended for:

・Those who love reading but don't have much time
・Those who like podcasts but can't find a topic they want to listen to
・Those who want to spend intellectual time during their commute, housework, or exercise
・Those who are curious and interested in many things
・Those who enjoy the experience of being spoken to directly, like on a late-night radio show

■ Terms of Use

The program scripts are automatically generated by AI. Historical information, facts, and the latest information may not be accurate.
Please enjoy it as a way to stimulate your intellectual curiosity.

We do not collect personally identifiable information.
For more details, please see the app's privacy policy.
Updated on
Jul 12, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Financial info and App activity
Data is encrypted in transit
Data can’t be deleted

What’s new

KATARU 初回リリース 🎙

聴きたいテーマを入力するだけで、AIがあなただけのラジオ番組を
その場で生成して語り続けます。
・テーマ自由入力&おまかせ選局
・続きから再生、話題の切り替えもシームレス
・プレミアム(月額/年額)で無制限再生、
 ナレーションの声4種、BGM4種+音量調整
※番組はAIが自動生成しています。内容の正確性は保証されません。
Content rating
Everyone
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App support

About the developer
EKLIPS DIMENSION
eklipsdimension@gmail.com
1-2-2, UMEDA, KITA-KU OSAKA EKIMAE NO.2 BLDG. 12-12 OSAKA, 大阪府 530-0001 Japan
+81 70-3665-3111