Captio AI
🦻 Accessibility + 💻 Productivity App

English live captions and productivity tool for group settings

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.

🍽️Family dinners

A family dinner in Yorkshire, Birmingham, or Glasgow where every relative has a different accent and three conversations run at once. Put Captio AI on the table and follow every voice, whatever the dialect.

🎉Social gatherings and parties

A Friday night at the pub with friends. Music, laughter, people talking at different angles — Captio AI captions whoever is speaking near your phone so you stay in the conversation, not just in the room.

Friend catch-ups

A bank holiday barbecue or garden party where the conversation moves between groups and topics shift without warning. Captio AI follows each speaker wherever you are.

🌍Multilingual groups

A multigenerational family Christmas or Easter gathering — grandparents with one accent, children with another, the telly on in the background. Captio AI keeps you in every exchange.

👥Community and club meetings

A book club, community association, or church group where multiple speakers contribute quickly and no captioning is provided. Captio AI captions each contributor in real time.

🏠Shared living situations

A shared flat dinner with housemates, or a catch-up with friends. The casual fast English of close-knit groups — slang, nicknames, half-finished sentences. Captio AI covers it all.

Performance

Most accurate and fastest models

English
93.5%

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 to keep you in the conversation, not just in the room

Captions whoever is speaking

Captio AI follows the dominant voice at any moment — whoever is loudest in the microphone's direction. In a group conversation, this tracks the active speaker naturally.

Works through background noise

Restaurants, living rooms, parties, outdoor gatherings. Moderate background noise does not prevent accurate captions — Captio AI is built for real environments, not quiet rooms.

Place it in the centre and forget it

Put the phone on the table or in the middle of the group, microphone facing the conversation. No positioning it after every speaker change, no adjusting between voices.

Less effort, less fatigue

The cognitive load of following a group conversation by lip-reading and reconstructing speech is exhausting. Captio AI handles the following so you can direct your energy toward actually being in the conversation.

60+ languages

For multilingual families, mixed-language social groups, or gatherings where people switch between languages mid-conversation. No setup required between language changes.

No setup between conversations

Open the app and place the phone. No configuration per setting, no briefing the group, nothing to manage between conversations. It works for any group, in any situation.

English

Why English is hard to understand

Dialect gulf

  • A Glaswegian grandparent and a Yorkshire cousin sound like different languages
  • British English regional accents diverge dramatically in vowel quality, consonant patterns, and prosody. A deaf person who has calibrated lip-reading to Received Pronunciation encounters a completely different set of mouth shapes from a Geordie, Brummie, or Scottish speaker. Family gatherings regularly bring multiple regional varieties into the same room with no shared phonological ground.

Consonant dropping

  • Casual English drops the sounds that distinguish words
  • Informal English erodes consonants aggressively: 'wha're ya doin?', 'innit', 'd'you want a…', 'prob'ly'. The sounds that distinguish words collapse in everyday social speech. A deaf person trained on careful enunciated English faces a different phonological environment at a family dinner or pub gathering, where the casual register is the only register anyone uses.

60% not visible

  • Most English sounds are produced where the lips cannot show them
  • Research consistently finds that approximately 60% of English phonemes are not visible on the lips. Sounds like /p/ and /b/ are visually identical (bilabial homophones), as are /f/ and /v/, and /t/, /d/, and /n/. In a group setting where speakers sit at different angles and distances, the visible 40% drops further — leaving lip-reading dependent on context guessing for most of the speech signal.

Fast group pace

  • English group conversation runs on overlaps and interruptions
  • English social conversation moves at high speed with frequent interruptions and overlapping contributions. When a topic is abandoned mid-sentence and another speaker jumps in, the visual context a deaf person is tracking dissolves without warning. In a family dinner or pub gathering, this is the norm — not an exception.

Schwa reduction

  • Unstressed syllables collapse to near-silence in natural speech
  • In natural English, unstressed syllables reduce to schwa or disappear entirely: 'probably' → 'prob'ly', 'actually' → 'ac'lly', 'family' → 'fam'ly'. The word a deaf person expects to see on the lips is often not what appears — because the spoken version has fewer syllables than the written one.

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The Challenge

18 million people. Left out of the ordinary conversations everyone else takes for granted.

Over 18 million adults in the UK are deaf, have hearing loss, or experience tinnitus — a figure published in the International Journal of Audiology in 2024, using updated data from the 2021 Scottish census and the 2022 England and Wales Census. Of these, approximately 2.4 million struggle to hear most conversational speech, and 900,000 are severely or profoundly deaf. These are not marginal numbers. They represent the largest single disability group in the UK.

The gap between prevalence and provision is severe. Only 2 million hearing aid users are active from a potential pool of 6.7 million who could benefit — leaving millions managing daily communication without any assistive device. The settings where this gap is most acutely felt are not clinics or workplaces. They are the ordinary social settings where no formal accommodation exists and where the expectation of participation is unchanged: the dinner table, the pub, the family gathering, the community meeting. These are the environments where Dinner Table Syndrome — the experience of being physically present while socially excluded — is most felt.

Captio AI captions every English voice in a group in real time — across Glaswegian, Yorkshire, Estuary English, and any regional accent — so the family Sunday dinner, the barbecue, and the Friday night out with friends are settings a deaf or hard of hearing person can follow without the exhaustion of sustained lip-reading effort.

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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

"Family Sundays are fast Yorkshire and everyone talks over each other. I used to sit there nodding. Captio AI on the table means I follow the whole meal."

Sophie M. 🇬🇧
sophie.m***@gmail.com
Hard of hearing, Sheffield

"Glaswegian at speed is a different language. I put Captio AI in the middle of our kitchen table and follow the whole thing now. It changed what family gatherings feel like."

Callum F. 🇬🇧
callum.f***@gmail.com
Deaf since childhood, Glasgow

"My family switches between Yoruba and English. Captio AI follows both so I'm not watching faces and guessing at which language just appeared."

Amara D. 🇳🇬
amara.d***@gmail.com
Hard of hearing, London

"Australian English in a noisy group is brutal to lip-read — vowels go everywhere. Captio AI lets me follow without burning out in the first twenty minutes."

James W. 🇦🇺
james.w***@gmail.com
Progressive hearing loss, Melbourne

"Family Sundays are fast Yorkshire and everyone talks over each other. I used to sit there nodding. Captio AI on the table means I follow the whole meal."

Sophie M. 🇬🇧
sophie.m***@gmail.com
Hard of hearing, Sheffield

"Glaswegian at speed is a different language. I put Captio AI in the middle of our kitchen table and follow the whole thing now. It changed what family gatherings feel like."

Callum F. 🇬🇧
callum.f***@gmail.com
Deaf since childhood, Glasgow

"My family switches between Yoruba and English. Captio AI follows both so I'm not watching faces and guessing at which language just appeared."

Amara D. 🇳🇬
amara.d***@gmail.com
Hard of hearing, London

"Australian English in a noisy group is brutal to lip-read — vowels go everywhere. Captio AI lets me follow without burning out in the first twenty minutes."

James W. 🇦🇺
james.w***@gmail.com
Progressive hearing loss, Melbourne

Download for free

Download on theApp Store
FAQ

Frequently asked questions

Keep up with the group in English.

Captio AI is free to start

Download for free

Download on theApp Store