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AquesTalk

Free plan AndroidAPIiPhoneLinuxMacSelf-hosted+2

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AquesTalk's own site

Plans

PlanBilled and limitsPrice
AquesTalk1 Development License (Personal Use)発行手数料; current release version only · Personal-use development license for AquesTalk1 · OS-specific license selection · License is limited to the current release version¥1,980 a month
Personal-use development license発行手数料 1,980円(ライセンス料自体は無料) · Hobby/noncommercial development · per product and OS · current release version only¥1,980, paid once
AqKanji2Koe use license¥3,960 · AqKanji2Koe language-processing library · OS-specific · commercial use¥3,960, paid once
AquesTalk10 use license¥6,380 · AquesTalk10 · perpetual use · OS-specific · latest version and earlier versions¥6,380, paid once
AquesTalk1 use license¥6,380 · AquesTalk1 · perpetual use · OS-specific · latest version and earlier versions¥6,380, paid once
Commercial content use license¥6,380(税込)(1ライセンス);有効期間はライセンス証発行日から1年間 · AquesTalk1/2/10 and AqKanji2Koe across all OS versions · unlimited video count · one license per PC¥6,380 a year
AquesTalk2 use license¥6,380 · AquesTalk2 · perpetual use · OS-specific · latest version and earlier versions¥6,380, paid once

As a-quest.com lists them, read 20 Sept 2026. The maker's own page has the final word.

Facts from AquesTalk's own pages

API access
Yes · store.a-quest.com, 20 Sept 2026
Commercial limits
Internet-facing server use requires a separate server license; standard use licenses allow closed-network use. · a-quest.com, 11 Oct 2026
Commercial use
Yes · store.a-quest.com, 20 Sept 2026
Custom work
Custom builds and changes such as voice, character encoding, input/output format, and sampling frequency are available by consultation. · a-quest.com, 11 Oct 2026
Engines
The family includes four rule-based synthesis engines: AquesTalk10, AquesTalk pico, AquesTalk2, and AquesTalk1. · a-quest.com, 11 Oct 2026
Evaluation limits
The downloadable evaluation version changes all na-row and ma-row phonemes to nu and is limited to product evaluation. · a-quest.com, 11 Oct 2026
Export formats
WAV · store.a-quest.com, 20 Sept 2026
Free personal use
Personal hobby use without direct or indirect commercial purpose is free under the maker's stated conditions. · a-quest.com, 11 Oct 2026
Free plan
No · store.a-quest.com, 20 Sept 2026
Implementation
The engine uses ANSI C code and requires no external libraries or file system, allowing porting to systems without an operating system. · a-quest.com, 11 Oct 2026
Integrations
The maker describes AquesTalk integrations for ESP32, Raspberry Pi, Android TTS, and video tools including Yukkuri MovieMaker. · a-quest.com, 11 Oct 2026
Languages
1 · store.a-quest.com, 20 Sept 2026
Platforms
web,windows,macos,linux,ios,android,api · store.a-quest.com, 20 Sept 2026
Player
AquesTalkPlayer for Windows, Mac, and the browser reads text aloud and exports WAV files. · a-quest.com, 11 Oct 2026
Product
AquesTalk is a Japanese speech-synthesis engine family used in embedded products and PC applications. · a-quest.com, 11 Oct 2026
Security and privacy
The privacy policy says customer personal information is not disclosed to third parties except with consent or when requested by public authorities or required by law. · a-quest.com, 11 Oct 2026
Support
The maker provides downloadable evaluation packages and manuals, an FAQ, and a contact channel for product inquiries. · a-quest.com, 11 Oct 2026
Text processing
AqKanji2Koe converts text containing kanji into phonetic strings for AquesTalk synthesis. · a-quest.com, 11 Oct 2026
Use case
The maker offers compact speech-synthesis middleware that can run in systems without cloud access. · a-quest.com, 11 Oct 2026

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