Captio AI
🦻 Accessibility + 💻 Productivity App

Hindi live captions and productivity tool for everyday conversations

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.

🏪Counter conversations

Local chemist, ration shop counter, bank branch window, post office. Staff speak fast in street Hindi and move on. Captio AI shows what they said before the exchange ends.

🍽️Group conversations

Family dinner, Diwali gathering, wedding function. Fast Hindi mixing with Punjabi, English, or Bhojpuri depending on the room. Captio AI captions whoever is speaking.

👋Talking to strangers

Asking an auto driver where they're going, getting help from a shopkeeper, chatting with a neighbour. People who speak at full conversational pace. Captio AI captions anyone near you.

Informal work moments

Chai break conversation, quick question across the office floor, catch-up in the canteen. The moments Indian workplaces run on. Captio AI keeps you in those conversations.

📋Appointments and admin

Government office window, hospital OPD counter, Aadhaar centre, bank branch. Fast Hindi, sometimes bureaucratic, no repeat expected. Captio AI transcribes everything said.

🚉Getting around

Railway station announcements, auto-rickshaw conversation, asking at a bus stand. Situations where you need to understand fast and the queue will not wait. Captio AI covers you anywhere.

Performance

Most accurate and fastest models

Hindi
92.6%

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 conversations that don't wait

Captions as they speak, not after

Captio AI shows each word as it is spoken. You read what the person is saying while they are still saying it — not after they have finished and moved on.

No lip reading needed

You do not need to face the speaker or position yourself to see their mouth. Captio AI picks up speech from any direction — across a counter, at a table, in a busy street.

Works through background noise

Restaurants, pharmacies, busy streets, crowded waiting rooms. Captio AI separates speech from background noise so captions stay accurate where everyday conversations actually happen.

Follows any conversation

One person or six. Captio AI captions whoever is speaking at any moment — so you follow the thread at a dinner table or keep up with a counter exchange without losing track.

Any accent, any pace

People do not slow down or enunciate for you. Captio AI handles fast talkers, regional accents, and casual speech — the way people actually talk in real life.

Any language, no setup

When someone speaks a language you do not know, switch to Live Translator. They speak their language — you read in yours. No configuration needed. Works in 60+ languages.

Hindi

Why Hindi is hard to understand

Hardest phonemes to lip-read

  • Hindi has the most visually ambiguous sounds of any major language
  • South Asian languages — Hindi included — are among the hardest to lip-read in the world. Retroflex consonants (ट, ड, ण) and aspirated stops (ख, घ, छ) are articulated with almost no distinguishing lip movement. These are not edge cases — they are core Hindi sounds present in everyday speech.

Casual register gap

  • Street Hindi sounds nothing like formal Hindi
  • Formal Hindi is deliberate and clear. Everyday Dilli ki boli, Bollywood slang, and fast street exchanges drop syllables, blur word boundaries, and run at a pace very different from anything taught in school. The gap between written Hindi and what a chai stall vendor or auto driver actually says is enormous.

Multilingual mixing

  • Most conversations in urban India are not just Hindi
  • Urban Indian conversations mix Hindi with English, Hinglish, and regional languages mid-sentence. A single family dinner in Delhi can involve Hindi, English, Punjabi, and Bhojpuri without any speaker switching consciously. Following the meaning requires all of them at once.

Regional dialect variation

  • Delhi Hindi and Bihari Hindi are not the same ears — or the same lips
  • Everyday Hindi varies significantly between states. Delhi street Hindi, Bihari-inflected Hindi, Rajasthani Hindi, and Mumbai Hindi carry distinct phonological features — different vowel qualities, different consonant realisations, different prosody. A deaf person calibrated to one regional variety will miss significant portions of another, and urban India mixes all of them in a single street market or family gathering.

Loud public settings

  • Railway stations, markets, and streets assume you can hear
  • India's busiest everyday settings — railway stations, sabzi mandis, auto stands, bazaars — are acoustically overwhelming. These are places deaf and hard of hearing people navigate dozens of times a week, with no visual alternative and no accommodation of any kind.

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The Challenge

63 million people. Excluded from the texture of Indian daily life.

India is home to approximately 63 million deaf and hard of hearing people — the second-largest such population in the world. For deaf people navigating Hindi-speaking India, exclusion does not begin in formal institutions. It begins at the chai stall, the railway counter, the joint family dinner, the neighbourhood kirana shop. These are not exceptional settings — they are the everyday texture of Indian social life, and they have no accessibility infrastructure of any kind.

Only 5% of deaf children in India are enrolled in school, according to India's National Programme for Prevention and Control of Deafness. Indian Sign Language is absent from public transport, market settings, government offices, and the informal social spaces where daily Hindi life happens. The 2024 general election broadcast lacked sign language interpreters. Hindi media channels do not provide ISL interpretation. For everyday life outside formal institutions, there is no system — only the individual, managing alone.

India's deaf and hard of hearing population is growing, driven by high rates of noise-induced hearing loss from urban density and industrial exposure, and by limited preventative healthcare reach in rural areas. The infrastructure to support deaf people in ordinary Hindi-speaking daily life is not keeping pace with the scale of the challenge. Captio AI captions Hindi speech in real time — including fast casual registers, regional accents, and Hinglish code-switching — so the chai stall, the railway counter, and the family dinner are no longer settings a deaf person has to navigate alone.

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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

"Delhi street Hindi is nothing like what I learned in school. The auto drivers talk so fast and accent is completely different. Captio AI follows all of it in real time."

Priya S. 🇮🇳
priya.s***@gmail.com
Hard of hearing, Delhi

"Family dinners are the hardest. Everyone talks at once, mixing Hindi and Marathi and English. Captio AI keeps up with the switching. I am actually part of the conversation now."

Arjun M. 🇮🇳
arjun.m***@gmail.com
Deaf since childhood, Mumbai

"Going to the bazaar used to mean gesturing and guessing. Now I put Captio AI between me and the vendor. Lucknawi Hindi, fast and colloquial, and it gets every word."

Kavita R. 🇮🇳
kavita.r***@gmail.com
Hard of hearing, Lucknow

"Railway station counters are the worst — fast Hindi, thick accents, noise everywhere. Captio AI changed that completely. I know what is being said before the person moves on."

Deepak N. 🇮🇳
deepak.n***@gmail.com
Hard of hearing, Jaipur

"Delhi street Hindi is nothing like what I learned in school. The auto drivers talk so fast and accent is completely different. Captio AI follows all of it in real time."

Priya S. 🇮🇳
priya.s***@gmail.com
Hard of hearing, Delhi

"Family dinners are the hardest. Everyone talks at once, mixing Hindi and Marathi and English. Captio AI keeps up with the switching. I am actually part of the conversation now."

Arjun M. 🇮🇳
arjun.m***@gmail.com
Deaf since childhood, Mumbai

"Going to the bazaar used to mean gesturing and guessing. Now I put Captio AI between me and the vendor. Lucknawi Hindi, fast and colloquial, and it gets every word."

Kavita R. 🇮🇳
kavita.r***@gmail.com
Hard of hearing, Lucknow

"Railway station counters are the worst — fast Hindi, thick accents, noise everywhere. Captio AI changed that completely. I know what is being said before the person moves on."

Deepak N. 🇮🇳
deepak.n***@gmail.com
Hard of hearing, Jaipur

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FAQ

Frequently asked questions

Follow any conversation in Hindi.

Captio AI is free to start

Download for free

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