iSpeech
8.5#1 in text-to-speech softwareFree planFree planAndroidiOSWebAPI
VisitiSpeech vs Supertonic 3
Supertonic 3
7.2#87 in text-to-speech toolsAndroidiOSWebAPI
VisitWhat both publish
| Fact | iSpeech | Supertonic 3 |
|---|---|---|
| API access | API access requires an API key, with mobile development, mobile production, and web/general production key types. | Yes |
| Commercial use | Yes | The model weights use OpenRAIL-M, which allows commercial use subject to use restrictions and attribution requirements. |
| Export formats | aiff,mp3,ogg,wma,flac,wav,alaw,ulaw,vox,mp4 | WAV |
| Free plan | Yes | Yes |
| Headquarters | The company lists Newark, New Jersey as headquarters and San Francisco as an additional office. | Seoul, Republic of Korea |
| Languages | The homepage says the Speech API supports text-to-speech and speech recognition in more than 30 languages. | The model supports 31 languages without per-language fine-tuning. |
| Platforms | web,ios,android,api | web,ios,android,api |
| Product | iSpeech provides text-to-speech and automated speech recognition services through APIs, SDKs, and online tools. | Supertonic 3 is a 99M-parameter open-weight multilingual text-to-speech model that runs locally on CPU using ONNX Runtime. |
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
Supertonic 3 plans
No prices published.
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.
Pick Supertonic 3 if…
You want what its maker publishes above — check its page for the details.