Captio AI
🦻 Accessibility + 💻 Productivity App

Persian live captions and productivity tool for tv & media

For deaf and hard of hearing people.

Download for free

Download on theApp Store
Captio AI app showing live captions

Download for free

Download on theApp Store
Use Cases

Every situation covered

Designed for the real moments that matter — not just quiet controlled environments.

📺Live TV — news, sport, events

IRIB and satellite channels run live news that pre-generated captions lag behind. Point Captio AI at your TV and read the Persian as it is spoken, not several seconds behind the anchor.

🎬Streaming content

Streaming platforms and video apps vary in subtitle quality and availability. Captio AI works as a consistent fallback for any Persian show or film that ships with wrong, delayed, or missing captions.

📱YouTube and social media

YouTube auto-captions for Persian are often inaccurate and most social video has none. Point Captio AI at your phone and read accurate Persian captions for any clip.

🌍Foreign-language content

A foreign film, a foreign documentary voiced over in Persian, a non-Persian channel. Live Translator captions and translates in real time so anything becomes watchable as it plays.

🎭Cinema

Not every cinema showing is captioned. Hold Captio AI near the audio and read real-time Persian captions of the dialogue discreetly from your seat.

🎧Podcasts and audio content

Most Persian podcasts have no transcript. Hold Captio AI near the audio or upload a recording, and read the whole episode in writing.

Performance

Most accurate and fastest models

Persian
89.1%

word accuracy

independent benchmark, 2025

< 200ms
you speak
captions

real-time captions

first word appears as you speak

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Captio AI in everyday use
Why Captio AI

Built for the content that subtitles fail

Captions any content in real time

Point the phone toward any speaker — TV, laptop, tablet, cinema screen. Captio AI captions whatever is playing, regardless of whether that platform provides subtitles.

Faster than built-in subtitles for live content

Pre-generated subtitles lag behind live TV by several seconds. Captio AI captions in real time — so you read what is being said as it is being said.

Works on any screen or device

No integration required. Point the phone toward the audio source — the same approach works for a large TV, a laptop screen, a cinema, or a phone held at arm's length.

Any language, translated in real time

For foreign-language content, switch to Live Translator. It translates as content plays — so a French film, a German documentary, or a Japanese series all become watchable.

No subtitle file needed

Captio AI captions from the audio directly. No subtitle file, no platform support, no creator requirement. If audio plays, Captio AI can caption it.

More accurate than auto-generated captions

The industry average for AI-generated subtitles is a 10–15% word error rate — roughly 1 in 10 words wrong (3Play Media). Captio AI is built for accuracy in real-world audio conditions.

Persian

Why Persian is hard to understand

Back-of-throat consonants

  • Sounds made deep in the throat, invisible on the lips
  • Persian has several consonants produced far back in the mouth and throat — خ, غ, ق — with no visible lip movement. On a TV drama or a news read, a deaf viewer sees nothing of these consonants, yet they distinguish common words that carry the meaning of a scene.

Ezafe linking

  • An unstressed vowel that ties phrases together
  • Persian links nouns to their modifiers with the ezafe, a short unstressed -e that is often not written and easily missed. It carries essential structure but sits on weak, fleeting vowels, so a deaf viewer cannot see how the parts of a phrase connect on screen.

Short-vowel omission

  • The vowels that carry meaning are the ones that drop
  • Persian short vowels are unstable and reduced in fast speech, while long vowels stay stable. In a rapid news read or a drama scene the short vowels that separate two words weaken and disappear, leaving a deaf viewer with a consonant skeleton and no way to fill it in.

Tehrani versus Dari

  • Iranian and Afghan Persian differ on screen
  • Persian-language film and TV span Tehrani Iranian Persian and Afghan Dari, which differ in vowels and in whether certain back consonants merge. A deaf viewer calibrated to Tehrani Persian meets different lip shapes from a Dari production.

Voice-over and dubbing

  • Foreign content voiced over, lips never match
  • Foreign film and news are widely voiced over or dubbed into Persian, so the words a viewer hears do not match the lips on screen. For a deaf viewer relying on lip-reading, this content is impossible to follow from the face alone.

Download for free

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The Challenge

Iran has no national captioning framework for deaf viewers

Hearing loss is common in Iran: a population study in Tehran found hearing impairment in around 14% of people, with roughly 5% having disabling hearing loss, elevated by the country's high rate of consanguineous marriage. Yet media accessibility has barely developed: researchers describe an absence of national guidelines for subtitling for the deaf and hard of hearing in Iranian broadcasting, and only a limited number of cinemas offer accessible subtitles.

The legal foundation is thin too — the constitution contains no direct reference to media-accessibility rights, and disability-rights commitments have not been followed with adequate implementation. Iranian television leans on voice-over translation for foreign news and content, which leaves a deaf viewer with a mouth that never matches the soundtrack; live news carries no reliable captions; and streaming and social content are largely uncaptioned.

Captio AI does not depend on the broadcaster or the platform. Point the phone at any screen — a live IRIB bulletin, a voiced-over foreign film, a YouTube clip — and read Persian captions in real time from the audio, whether or not that content was ever captioned.

Download for free

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Privacy

What you hear stays with you.

Gone the moment it ends

Captio AI processes your audio in real time and discards it immediately. Nothing is recorded. Nothing is kept.

Not a product

Your conversations are not something Captio AI sells, shares, or monetizes — to anyone, for any reason.

Not used to train anything

What you say in a doctor's appointment or a job interview never ends up in a training dataset. Not ours. Not anyone else's.

100% PRIVATE

Private by default

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Reviews

People love Captio AI

"Foreign news and films get a Persian voice-over, so the lips never match the sound — impossible for me. Captio AI captions the Persian soundtrack from the audio. For the first time I can follow voiced-over content."

Reza M. 🇮🇷
reza.m***@gmail.com
Hard of hearing, Tehran — foreign-content viewer

"Iranian dramas have no captions for us, and the back-of-throat sounds are invisible on the lips. Captio AI captions the actual dialogue from the audio, in real time. I follow the whole story now."

Sara K. 🇮🇷
sara.k***@gmail.com
Deaf, Tehran — drama viewer

"Live news has no captions and the short vowels drop so I cannot piece phrases together. Captio AI captions it in real time from the audio. I read the news as it is read."

Ali H. 🇮🇷
ali.h***@gmail.com
Hard of hearing, Mashhad — live news viewer

"Persian YouTube barely has captions and the ezafe makes phrases run together. Captio AI captions any clip accurately from the audio. It covers exactly the content the platforms do not."

Maryam T. 🇮🇷
maryam.t***@gmail.com
Deaf, Tehran — YouTube viewer

"Foreign news and films get a Persian voice-over, so the lips never match the sound — impossible for me. Captio AI captions the Persian soundtrack from the audio. For the first time I can follow voiced-over content."

Reza M. 🇮🇷
reza.m***@gmail.com
Hard of hearing, Tehran — foreign-content viewer

"Iranian dramas have no captions for us, and the back-of-throat sounds are invisible on the lips. Captio AI captions the actual dialogue from the audio, in real time. I follow the whole story now."

Sara K. 🇮🇷
sara.k***@gmail.com
Deaf, Tehran — drama viewer

"Live news has no captions and the short vowels drop so I cannot piece phrases together. Captio AI captions it in real time from the audio. I read the news as it is read."

Ali H. 🇮🇷
ali.h***@gmail.com
Hard of hearing, Mashhad — live news viewer

"Persian YouTube barely has captions and the ezafe makes phrases run together. Captio AI captions any clip accurately from the audio. It covers exactly the content the platforms do not."

Maryam T. 🇮🇷
maryam.t***@gmail.com
Deaf, Tehran — YouTube viewer

Download for free

Download on theApp Store
FAQ

Frequently asked questions

Watch anything in Persian.

Captio AI is free to start

Download for free

Download on theApp Store