iSpeech
8.5#1 in text-to-speech softwareFree planFree planAndroidiOSWebAPI
VisitiSpeech vs Sprag
What both publish
| Fact | iSpeech | Sprag |
|---|---|---|
| API access | API access requires an API key, with mobile development, mobile production, and web/general production key types. | Yes |
| Export formats | aiff,mp3,ogg,wma,flac,wav,alaw,ulaw,vox,mp4 | mp3,opus,aac,flac,wav,pcm |
| Free plan | Yes | No |
| Languages | The homepage says the Speech API supports text-to-speech and speech recognition in more than 30 languages. | 10 |
| Platforms | web,ios,android,api | web,api |
| Product | iSpeech provides text-to-speech and automated speech recognition services through APIs, SDKs, and online tools. | Sprag offers native speech-to-speech agents and an STT-to-LLM-to-TTS voice pipeline through one API. |
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
Sprag plans
- Chorus$0.70 a month
- Chorus Design$15 a month
- Chorus Clone$4.50 a month
- Symphony NotesFree
- Rhythm$0.08, paid once
- Symphony$0.09, paid once
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 Sprag if…
Sprag is intended for developers aged 16 and older who need speech recognition, synthesis or realtime voice agents. Its API and self-hosting options may suit teams integrating speech capabilities into their own applications or deployments.