Skip to content
SPECIFICTION
Get listed

Gnuspeech vs iSpeech

Gnuspeech

gnu.org

iSpeech

ispeech.org

Side by side

FigureGnuspeechiSpeech
Price fromFree$0.25/mo
Free planYesYes
Free trial—Yes
Open source—Yes
Web—Yes
Windows—Yes
macOSYesYes
LinuxYesYes
iOS—Yes
Android—Yes
API—Yes
Plans published115
Spec score · Text-to-Speech Software8.0 (#110)9.2 (#6)
Spec score · Text-to-speech tools7.7 (#152)9.2 (#11)
Commercial useYesYes
Free planYesYes
Platformsmacos,linuxweb,ios,android,api
SecurityThe page does not state security or compliance certifications.The privacy policy says iSpeech uses commercially reasonable physical, managerial, and technical safeguards, while stating it cannot warrant the security of transmitted information.
SupportThe page links to source code repositories and manuals; it does not state a support service.The developer pricing page lists priority technical support with purchases; the API guide directs support requests to [email protected].

Plans

Gnuspeech

  • GnuspeechFree

Gnuspeech pricing →

iSpeech

  • Plus$2.95 a month
  • Premium$3.95 a month
  • Pay Per Use$50 a month
  • Pay Per Install$0.25 a month
  • BasicFree
  • HackerFree
  • Plus$2.95 a month
  • Premium$3.95 a month
  • Junior$29 a month
  • Pay-per-use 2,000 credits$50, paid once

iSpeech pricing →

In their own words

Gnuspeech

Gnuspeech has no write-up on Specifiction yet; its figures are above.

Visit gnu.org

iSpeech

iSpeech provides text-to-speech and automated speech recognition through APIs, SDKs, and online tools. Its speech API can synthesize audio with multiple voices, formats, bitrates, frequencies, and playback speeds, and supports MathML and SSML. The API can also transcribe submitted audio across multiple languages and recognition models; iSpeech says custom models can be created. The homepage lists support for more than 30 languages. Audio downloads are available in AIFF, MP3, OGG, WMA, FLAC, WAV, A-law, μ-law, VOX, and MP4 formats. Listed access includes Android, iOS, Linux, macOS, web, Windows, API, and extension. The Basic plan is free for personal use, and commercial use is listed as available. Plus costs $2.95 a month, billed monthly, and includes 30-minute recordings, approximately 4,167 words. Premium costs $3.95 a month, billed monthly, with 12-hour recordings, approximately 100,000 words. Pay Per Use costs $50 a month for dynamic TTS usage only and includes 2,000 credits. Pay Per Install costs $0.25 a month and has a 10,000-install minimum.

Visit ispeech.org