Listen to books, PDFs and articles in lifelike AI narration
Listen to books, PDFs and articles in lifelike AI narration
Readio records 12,402 monthly visits with +6.7% month-over-month growth and Freemium pricing. Yoptio records 0 monthly visits with 0% growth and Free pricing.
Your feeds, one calm stream — summarised, read aloud and filtered by AI.
| Dimension / Metric | ||
|---|---|---|
| Official Domain | readiolabs.org | yoptio.com |
| Pricing Model | Freemium | Free |
| Monthly Visits | 12.4K (12,402) | 0 (0) |
| MoM Traffic Delta | +783 (+6.7%) | 0 (0%) |
| Primary Market & Share | 🇺🇸 United States (38.2%) | 🌐 Global (—) |
| Direct Visits / mo | 4.98K | 0 |
| User Rating | 4.2 | 4.1 |
| Supported Platforms | Website | Website |
Listen to PDFs, ebooks, and webpages in natural AI voices with synced highlighting.
As the document is read, sentences highlight in sync with the audio and the page scrolls automatically, so you never lose your place.
Six OpenAI TTS voices, including Alloy, Echo, Fable, Onyx, Nova, and Shimmer, cover neutral, narrative, and expressive styles for different content types.
Read in over 140 languages and dialects, with regional English, German, French, Spanish, and Chinese variants available.
Built-in filters skip footnotes, superscripts, and bracketed text, and you can manually exclude sections you do not want spoken.
Your feeds, one calm stream — summarised, read aloud and filtered by AI.
Bring the RSS feeds you already follow into one clean, time-ordered stream instead of hopping between apps and tabs.
Every article gets a concise AI-generated summary so you can judge whether it is worth the full read.
Have articles read aloud so you can catch up while commuting, cooking or working out.
A daily AI-curated digest rounds up the most relevant items from your sources in one short briefing.
Listen to books, PDFs and articles in lifelike AI narration
Listen to books, PDFs and articles in lifelike AI narration
Text to speech and voice AI across every device
Text to speech and voice AI across every device
Free AI text to speech with 200+ voices in 70+ languages
Free AI text to speech with 200+ voices in 70+ languages

All-in-one AI speech, transcription, and voice cloning studio
All-in-one AI speech, transcription, and voice cloning studio
SpecialistListen to anything. Beautifully.
SpecialistListen to anything. Beautifully.

Natural AI text to speech with 910+ voices on web, iOS and Android
Natural AI text to speech with 910+ voices on web, iOS and Android

SpecialistHacker News and AI paper summaries in seven languages
SpecialistHacker News and AI paper summaries in seven languages
Turn PDFs, docs and web pages into natural-sounding audio you can listen to anywhere
Turn PDFs, docs and web pages into natural-sounding audio you can listen to anywhere

Free browser text-to-speech with natural neural voices
Free browser text-to-speech with natural neural voices

SpecialistPersonalized news, summarized from many sources
Reader mode, text-to-speech and AI summaries for any web page
Reader mode, text-to-speech and AI summaries for any web page
SpecialistListen to anything: articles, PDFs and newsletters as your own private podcast
SpecialistListen to anything: articles, PDFs and newsletters as your own private podcast