Captio AI
🦻 Accessibility + 💻 Productivity App

Estonian 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

Estonian family celebrations — Jaanipäev bonfires, Christmas Eve, name-day dinners — bring multiple generations together. Captio AI keeps the full conversation accessible for deaf and hard-of-hearing family members across the table.

🎉Social gatherings and parties

House parties and neighbourhood gatherings in Tallinn, Tartu, or a smaller Estonian town involve overlapping voices and quick topic shifts. Captio AI follows each speaker in real time so deaf guests can participate rather than watch.

Friend catch-ups

A coffee or tea catch-up with Estonian friends at a kohvik is intimate and fast. Captio AI captions every exchange so a deaf person can contribute at the right moment rather than guessing at what was said.

🌍Multilingual groups

Community events, küla gatherings, and local association meetings use fast conversational Estonian. Captio AI makes the full discussion followable without a professional interpreter.

👥Community and club meetings

When grandparents use Võro or older Estonian forms and grandchildren speak Tallinn urban Estonian, the variation is significant. Captio AI captions both and keeps the multigenerational table connected.

🏠Shared living situations

Gatherings at a choir rehearsal, a folk dance group, or a diaspora community event involve rapid exchanges between familiar members. Captio AI keeps a deaf or hard-of-hearing member part of every conversation.

Performance

Most accurate and fastest models

Estonian
90.4%

word accuracy

independent benchmark, 2025

< 200ms
you speak
captions

real-time captions

first word appears as you speak

Download for free

Download on theApp Store
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.

Estonian

Why Estonian is hard to understand

Three-way phonemic length

  • Duration differences invisible on the lips
  • Estonian has a unique three-way contrast in vowel and consonant length: short (Q1), long (Q2), and overlong (Q3). These distinctions are carried entirely in duration — 'koli' (junk), 'kolli' (monster), and an overlong form are different words that look identical on the lips. No other language in Europe uses this three-way contrast, and it cannot be recovered by sight.

Nine-vowel system

  • Front rounded vowels reduce at speed
  • Estonian has nine vowel phonemes including /ü/, /ö/, and the central /õ/ — sounds with no equivalent in most European languages. These vowels have distinct lip configurations in careful speech, but in fast conversational Estonian they reduce toward a narrower set, making the contrast that was barely visible disappear entirely.

Võro and Seto gap

  • South Estonian varieties read like a different language
  • The Võro and Seto varieties of South Estonian are distinct enough that many speakers consider them separate languages. At a multigenerational gathering in southeastern Estonia, grandparents may use Võro while younger family members use standard Estonian — two phonological systems arriving without any transition signal.

Agglutinative suffix chains

  • Long word-endings blur at conversational speed
  • Estonian is highly agglutinative — a single word may carry several grammatical suffixes that form a rapid sequence of small mouth movements. At conversational speed, these suffix chains blur into each other with few separable word-boundary cues, giving a deaf lip-reader little to anchor on at the end of long words.

Estonian-Russian code-switching

  • A second phonological system enters mid-sentence
  • A significant Russian-speaking minority in Estonia means community gatherings often involve Estonian-Russian code-switching. The two languages have very different phonology — Russian has soft consonant pairs, different vowel qualities, and different stress patterns. A deaf lip-reader tracking Estonian suddenly faces a completely different visual system without warning.

Download for free

Download on theApp Store
The Challenge

Hearing loss in Estonia: the scale of daily exclusion

Estonia is home to an estimated 43,500 deaf and hard-of-hearing people — approximately 3.3% of the general population — according to estimates from Estonia's deaf associations. This places Estonia's hearing loss prevalence rate above the European average, suggesting persistent gaps in early identification, newborn screening, and hearing aid provision relative to larger Western European countries. Of these 43,500 people, a smaller subset use Estonian Sign Language (Eesti Viipekeel, EVK) as their primary means of communication, while the majority navigate daily life through residual hearing, lip-reading, or improvised workarounds.

Estonian Sign Language dates to 1866, when the first deaf school was established in Vändra, but modern interpreter provision has struggled to keep pace with need. A systematic review on hearing loss and social isolation (PMC8292986) identified strong associations between untreated hearing loss and exclusion from community life — particularly from the informal social settings that make up most of daily experience: family dinners, neighbourhood gatherings, and spontaneous group conversations that have no structured captioning provision.

Captio AI captions Estonian conversation in real time, so a deaf or hard-of-hearing person can follow a family dinner in Tallinn or a community gathering in Tartu without relying on a scarce interpreter or asking others to slow down.

Download for free

Download on theApp Store
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

Download on theApp Store
Reviews

People love Captio AI

"Jaanipäev with the whole family is the one night where everyone talks at once around the bonfire. I used to miss almost everything. Captio AI changed that completely."

Liisa P. 🇪🇪
liisa.p***@gmail.com
Tallinn, moderate sensorineural hearing loss

"My grandparents speak Võro and I have always struggled to follow them. Captio AI handles both Võro and standard Estonian. Family visits in Põlvamaa feel completely different now."

Tõnu V. 🇪🇪
tonu.v***@gmail.com
Tartu, deaf since childhood

"At Estonian community events in Helsinki the conversation moves between Estonian and Finnish constantly. Captio AI follows both and I have not felt isolated at a community gathering in over a year."

Kristiina S. 🇫🇮
kristiina.s***@gmail.com
Helsinki diaspora, bilateral hearing loss

"The three-way vowel length in Estonian — I never realised how much I had been missing. Captio AI shows me the words I was guessing at. I have started contributing to conversations I used to avoid."

Mihkel A. 🇪🇪
mihkel.a***@gmail.com
Pärnu, age-related hearing loss

"Jaanipäev with the whole family is the one night where everyone talks at once around the bonfire. I used to miss almost everything. Captio AI changed that completely."

Liisa P. 🇪🇪
liisa.p***@gmail.com
Tallinn, moderate sensorineural hearing loss

"My grandparents speak Võro and I have always struggled to follow them. Captio AI handles both Võro and standard Estonian. Family visits in Põlvamaa feel completely different now."

Tõnu V. 🇪🇪
tonu.v***@gmail.com
Tartu, deaf since childhood

"At Estonian community events in Helsinki the conversation moves between Estonian and Finnish constantly. Captio AI follows both and I have not felt isolated at a community gathering in over a year."

Kristiina S. 🇫🇮
kristiina.s***@gmail.com
Helsinki diaspora, bilateral hearing loss

"The three-way vowel length in Estonian — I never realised how much I had been missing. Captio AI shows me the words I was guessing at. I have started contributing to conversations I used to avoid."

Mihkel A. 🇪🇪
mihkel.a***@gmail.com
Pärnu, age-related hearing loss

Download for free

Download on theApp Store
FAQ

Frequently asked questions

Keep up with the group in Estonian.

Captio AI is free to start

Download for free

Download on theApp Store