eSpeak NG
7.9#12 in text-to-speech softwareFree planFree planAndroidiOSAPILinux
VisiteSpeak NG vs iSpeech
What both publish
| Fact | eSpeak NG | iSpeech |
|---|---|---|
| API access | Yes | API access requires an API key, with mobile development, mobile production, and web/general production key types. |
| Commercial use | Yes | Yes |
| Export formats | WAV | aiff,mp3,ogg,wma,flac,wav,alaw,ulaw,vox,mp4 |
| Free plan | Yes | Yes |
| Markup support | SSML and HTML input are supported, although the SSML implementation is incomplete. | The API accepts both Speech Synthesis Markup Language and MathML for text-to-speech requests. |
| Platforms | The project lists Linux, BSD, Android 4.0+, Windows 8+, and Mac as supported platforms. | web,ios,android,api |
eSpeak NG plans
- eSpeak NGFree
iSpeech plans
- Pay Per Use$50 a month
- Pay Per Install$0.25 a month
- HackerFree
- BasicFree
- Plus$2.95 a month
- Premium$3.95 a month
Pick eSpeak NG if…
It suits developers, screen-reader users and projects needing a compact synthesizer across desktop, mobile, API or self-hosted environments. Commercial users can use it under its stated GPL license.
Pick iSpeech if…
iSpeech may suit people who need text-to-speech or transcription, as well as developers seeking API or SDK access. Its described education uses include mobile learning apps, spoken course materials, and pronunciation practice.