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App Store Apps > Utilities > Kowairo Voice
Kowairo Voice icon

Kowairo Voice

by TAKAYOSHI YOSHIKAWA · Utilities · Free
On the App Store since July 2026 · Data updated 2026-11-03

Kowairo Voice is made and published by TAKAYOSHI YOSHIKAWA. AppBrain is an independent app data site and isn't affiliated with TAKAYOSHI YOSHIKAWA. The app name, icon, screenshots and description belong to TAKAYOSHI YOSHIKAWA and are shown as published on the App Store.

AppBrain's verdict

Last updated
August 10, 2026
Official page on the App Store

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Releases

Updates seen on the App Store
Version
1.3
Launched
July 2026

No changelog data

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Technology

Found in the app by AppBrain
Price
Free
App size
34.5 MB
Content rating
Everyone

Technologies used by Kowairo Voice

About the app and developer

About Kowairo Voice

Kowairo Voice is an utilities app developed by TAKAYOSHI YOSHIKAWA.

User Ratings

The app has no ratings yet.

App Information

Kowairo Voice is freely available from the App Store. The app size is 34.50 MB. The latest version available is 1.3. The last update was on August 10, 2026.

Technical Requirements

The app has a content rating of Everyone. The app has been available on the App Store since July 2026.

Developer information for TAKAYOSHI YOSHIKAWA

TAKAYOSHI YOSHIKAWA

Address:

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Store listing

By TAKAYOSHI YOSHIKAWA, from the App Store
Kowairo Voice Screenshot 1 of 2
Kowairo Voice Screenshot 2 of 2
Screenshots by TAKAYOSHI YOSHIKAWA, from the the App Store listing
Description by TAKAYOSHI YOSHIKAWA Written by the developer, not by AppBrain. Click to read.
Kowairo Voice is a completely offline Japanese text-to-speech app powered by Irodori-TTS v3. It runs entirely on-device — no internet connection required after the initial model download.

FULLY OFFLINE & PRIVATE
All processing happens on your device. Your text and generated audio never leave your phone. No data collection, no accounts needed.

VOICE DESIGN
Describe the voice you want in natural language — "calm female voice, cheerful" or "energetic young male voice" — and the AI generates speech matching your description.

VOICE CLONING (DUAL MODE)
Upload a reference audio recording to clone the voice. Combine with text descriptions for even more control.

ORGANIZED LIBRARY
Browse your generated clips by date, search by text content, and mark favorites for quick access.

PLAYLISTS
Group your audio clips into playlists. Play them in order, shuffled, or on repeat.

POWERED BY IRODORI-TTS V3
Built on the latest Irodori-TTS v3 (VoiceDesign) model, fine-tuned for high-quality Japanese speech synthesis with expressive control.

Perfect for content creators, language learners, accessibility needs, and anyone who wants to generate natural Japanese speech on their own terms.
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