BookFusion Voice: Natural TTS

BookFusion

About this app

BookFusion Voice is a neural text-to-speech engine that brings natural-sounding AI voices to your Android device. Once downloaded, voices work completely offline — your text never leaves your device.

Browse and download from over 100 voices across 38+ languages, including English, Spanish, French, German, Italian, Portuguese, Russian, Ukrainian, Polish, Czech, Dutch, Danish, Swedish, Norwegian, Arabic, Hebrew, Farsi, Hindi, Chinese, Vietnamese, Turkish, Greek, Romanian, and many more.

Each voice is available in multiple quality tiers — low, medium, and high — so you can choose the right balance between naturalness and performance for your device.

HOW TO GET STARTED

1. Open the app and browse the voice catalog
2. Preview any voice with a native-language test sentence
3. Download the voices you like


If you use BookFusion, you're done — it detects installed voices automatically, no configuration needed. For other apps, go to: Android Settings > Text-to-Speech and select BookFusion Voice as your preferred engine.

FEATURES

- Natural-sounding neural AI voices
- 100% offline after download — no internet required for speech synthesis
- 38+ languages with multiple voices per language
- Low, medium, and high quality tiers for each voice
- Voice preview to test before choosing
- Download size shown for every voice
- Automatic performance testing after download — slow voices are flagged so you know what works best on your device
- Adjustable speech speed (0.5x to 2.0x)

Works with any app that uses Android text-to-speech: book readers, accessibility tools, TalkBack, navigation, and more.

BOOKFUSION INTEGRATION

Use BookFusion Voice together with the BookFusion eBook reader for the best read-aloud experience. When paired with BookFusion, voices are pre-buffered ahead of time for seamless, gap-free narration — no pauses between paragraphs or pages. Just download a voice here and start listening in BookFusion.

PRIVACY

All speech synthesis happens locally on your device. Your text is never sent to any server. The app only connects to the internet to fetch the voice catalog and download voice files.

SUPPORTED LANGUAGES

Arabic, Bulgarian, Chinese, Croatian, Czech, Danish, Dutch, English, Estonian, Farsi, Finnish, French, Georgian, German, Greek, Hebrew, Hindi, Hungarian, Icelandic, Indonesian, Italian, Japanese, Kannada, Kazakh, Lithuanian, Luxembourgish, Marathi, Norwegian, Polish, Portuguese, Romanian, Russian, Serbian, Slovak, Spanish, Swahili, Swedish, Telugu, Turkish, Ukrainian, Vietnamese, and more.

What’s new

BookFusion Voice is here: an offline neural TTS engine with 100+ voices across 38+ languages.

Preview voices, see download sizes, choose low/med/high quality tiers, and adjust speed (0.5×–2.0×).

Works automatically with BookFusion or as your Android Text-to-Speech engine.