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SPECIFICTION
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iSpeech vs ReadSpeaker

iSpeech

ispeech.org

ReadSpeaker

readspeaker.com

Side by side

FigureiSpeechReadSpeaker
Price from$0.25/mo—
Free planYes—
Free trialYes—
Open sourceYes—
WebYesYes
WindowsYesYes
macOSYes—
LinuxYesYes
iOSYesYes
AndroidYesYes
APIYesYes
Plans published151
Spec score · Text-to-Speech Software9.2 (#6)6.9 (#210)
Spec score · Text-to-speech tools9.2 (#11)7.4 (#177)
API accessAPI access requires an API key, with mobile development, mobile production, and web/general production key types.Yes
Commercial useYesYes
Export formatsaiff,mp3,ogg,wma,flac,wav,alaw,ulaw,vox,mp4mp3,ogg,pcm,u-law,a-law,wav,afs,Dialogic ADPCM
Free planYesNo
HeadquartersThe company lists Newark, New Jersey as headquarters and San Francisco as an additional office.Uppsala, Sweden
Platformsweb,ios,android,apiweb,windows,linux,ios,android,api,self_hosted

Plans

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 →

ReadSpeaker

  • Individual licensesPrice not published

ReadSpeaker pricing →

In their own words

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

ReadSpeaker

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

Visit readspeaker.com