Captio AI
🦻 Accessibility + 💻 Productivity App

Persian live captions and productivity tool for meetings

For deaf and hard of hearing people.

Download for free

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Captio AI app showing live captions

Download for free

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Use Cases

Every situation covered

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

🔄Stand-ups and team syncs

Team meetings and stand-ups in Iranian offices where updates come in Persian. Captio AI captions each speaker so you follow every item.

📹Video calls

Skype or video calls with colleagues domestically or internationally. Put the call on speaker and read captions in real time.

🎯One-on-ones and reviews

Performance reviews and one-on-one sessions with a manager. Important conversations in Iranian corporate culture where every word matters. Captio AI transcribes everything.

🎤All-hands and town halls

Company-wide meetings where management addresses the full team. Captio AI captions every word from any seat.

🌍International and multilingual meetings

Meetings that mix Persian and English — common in Tehran's international business sector. Live Translator follows any switch in real time.

Informal catch-ups

Tea break conversations, desk-side questions, corridor catch-ups after the meeting. The informal moments in Iranian workplaces where context is built. Captio AI covers those too.

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 speed of a real meeting

Captions while they are still speaking

Words appear on screen as each person talks — not after they finish. You read what someone is saying at the same moment everyone else hears it.

Works in any meeting format

Conference rooms, open-plan offices, video calls, all-hands. Place the phone on the table or hold it — Captio AI handles the rest.

Handles fast speech and crosstalk

Captio AI is designed for real meetings, not controlled dictation. It follows whoever is speaking loudest at any moment, keeping up with the natural pace of discussion.

No setup, no explaining

Open the app and place the phone. No pairing, no telling colleagues what you are doing, no requesting anything from the meeting organiser.

Review everything after

Record the meeting and upload it to Audio Transcription for a full written record. Use AI Summary to extract decisions and action items so nothing from the meeting gets lost.

60+ languages

For international teams, multilingual meetings, or colleagues who switch between languages mid-discussion. No setup required — Captio AI detects and captions in real time.

Persian

Why Persian is hard to understand

Back consonants in formal speech

  • Persian formal vocabulary uses uvular consonants produced with no visible lip movement
  • Formal Persian draws on Arabic and classical Persian loanwords with uvular /q/ and uvular fricative /χ/. These consonants are produced far back in the throat with zero visible lip movement. In a board meeting, legal presentation, or formal team briefing, these back consonants appear throughout — entirely invisible to a deaf participant.

Vowel length contrasts

  • Persian vowel length distinctions that carry meaning collapse in fast meeting speech
  • Persian distinguishes short and long vowels phonemically. In fast Tehran meeting speech, these length contrasts reduce and merge under time pressure. A deaf participant with residual hearing loses the phonemic distinction that separates different words at exactly the speed of a real working meeting.

Tehran vs Dari vs Tajik

  • Iranian Persian, Afghan Dari, and Tajik Farsi are three distinct phonological systems
  • An international meeting with Persian-speaking colleagues from Tehran, Kabul, and Dushanbe presents three distinct phonological systems. Iranian Farsi, Afghan Dari, and Tajik differ in vowel quality, consonant distribution, and stress patterns. For a deaf participant, each speaker represents a different calibration challenge.

Colloquial vs formal register

  • Standard Persian and fast Tehran colloquial speech sound like different languages
  • Formal Persian (used in presentations and official contexts) and fast Tehran colloquial speech differ substantially in vowel quality, consonant reduction, and rhythm. In a meeting that opens with formal slides and moves to team discussion, a deaf participant encounters two distinct phonological systems in the same session.

Persian–English code-switching in tech

  • Tehran and Dubai tech meetings switch between Persian and English throughout
  • Tech and startup meetings run by Iranian teams in Tehran, Dubai, and diaspora communities switch between Persian and English continuously. English technical vocabulary, product names, and reporting terms appear in Persian sentence structure. For a deaf participant, tracking which language is active at any point requires running two phonological systems in parallel.

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The Challenge

Occupational noise leaves millions of Iranians with hearing loss — and most meetings remain inaccessible.

Occupational noise-induced hearing loss (NIHL) is a significant public health issue in Iran. A 2022 systematic review and meta-analysis published in PMC estimated the prevalence of occupational NIHL in Iran at 34.69% — a rate reflecting widespread exposure to excessive noise levels across Iran's large industrial, construction, and manufacturing workforce. This occupational burden adds substantially to the broader population of Iranians with hearing difficulty navigating formal professional environments.

Socioeconomic inequalities in disability in Iran show a pronounced geographic gradient — a PMC study found that poorer provinces have disproportionately higher prevalence of deafness and hearing disorders. This means the deaf and hard of hearing population is concentrated in regions with the least access to workplace accommodation, the fewest trained sign language interpreters, and the most limited corporate accessibility infrastructure. Iranian Sign Language (ISL) exists but has no standardised professional interpreter provision for corporate meetings.

Iran's economy has a large formal sector — oil, gas, petrochemical, automotive, banking, and a growing tech sector — all of which depend on verbal meetings, presentations, and collaborative calls. For deaf and hard of hearing professionals navigating these environments, there is no legal framework requiring meeting accessibility equivalent to those in Europe or North America. Captio AI captions Persian in real time — including the formal loanword-heavy register of a Tehran board meeting, the fast colloquial speech of a team standup, and the Persian-English code-switching of an Iranian tech startup — so the daily meeting is accessible.

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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

"Tehran tech standups switch between Persian and English every few sentences and the colloquial speech sounds nothing like formal Farsi. Captio AI handles both languages and both registers. I follow every sprint decision now."

Arash M. 🇮🇷
arash.m***@gmail.com
Hard of hearing, tech company, Tehran

"Formal Persian in a board meeting uses loanword vocabulary that is produced far back in the throat — completely invisible. Captio AI gives me the text in real time. The boardroom is accessible for the first time in my career."

Shirin K. 🇮🇷
shirin.k***@gmail.com
Deaf since childhood, pharmaceutical company, Tehran

"Afghan Dari has different vowels and consonants from Iranian Farsi and most tools collapse the distinction. Captio AI handles the Dari phonology accurately. Video calls with colleagues in Tehran are finally manageable."

Dariush N. 🇦🇫
dariush.n***@gmail.com
Hard of hearing, NGO, Kabul

"Dubai meetings with Iranian colleagues mix Persian and English heavily. Captio AI follows both languages and the transitions between them accurately. I know what every product decision means now without asking someone to slow down."

Nasrin P. 🇦🇪
nasrin.p***@gmail.com
Hard of hearing, tech startup, Dubai

"Tehran tech standups switch between Persian and English every few sentences and the colloquial speech sounds nothing like formal Farsi. Captio AI handles both languages and both registers. I follow every sprint decision now."

Arash M. 🇮🇷
arash.m***@gmail.com
Hard of hearing, tech company, Tehran

"Formal Persian in a board meeting uses loanword vocabulary that is produced far back in the throat — completely invisible. Captio AI gives me the text in real time. The boardroom is accessible for the first time in my career."

Shirin K. 🇮🇷
shirin.k***@gmail.com
Deaf since childhood, pharmaceutical company, Tehran

"Afghan Dari has different vowels and consonants from Iranian Farsi and most tools collapse the distinction. Captio AI handles the Dari phonology accurately. Video calls with colleagues in Tehran are finally manageable."

Dariush N. 🇦🇫
dariush.n***@gmail.com
Hard of hearing, NGO, Kabul

"Dubai meetings with Iranian colleagues mix Persian and English heavily. Captio AI follows both languages and the transitions between them accurately. I know what every product decision means now without asking someone to slow down."

Nasrin P. 🇦🇪
nasrin.p***@gmail.com
Hard of hearing, tech startup, Dubai

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FAQ

Frequently asked questions

Follow every word in Persian.

Captio AI is free to start

Download for free

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