Captio AI
🦻 Accessibility + 💻 Productivity App

Czech live captions and productivity tool for conferences & events

For deaf and hard of hearing people.

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Captio AI app showing live captions

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Use Cases

Every situation covered

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

🎤Keynotes and main stage talks

From a far seat in a keynote hall at the Prague Congress Centre or a venue in Brno, the speaker is distant and the hall is loud. Point Captio AI toward the nearest PA speaker and read every word of the Czech keynote from any seat.

🔬Academic and research conferences

At an academic conference — a research congress at a Prague university or a scientific meeting in Brno — presenters speak fast and stack consonant-heavy terminology. Captio AI captions in real time and transcribes for later review.

💼Industry and professional events

Industry events, technology summits, and product launches in Prague and Brno carry content that affects your work. Captio AI captions every speaker so you follow the panel.

📋Workshops and breakout sessions

In a workshop or breakout, several voices contribute in Czech from around the table. Place Captio AI on the table and follow every contribution, including from the back of the room.

🤝Networking and informal sessions

The most useful conversations often happen over coffee breaks and at the conference dinner. Captio AI works in these noisy, informal settings the same way it does in the main hall.

🌍International and multilingual events

At an international conference in the Czech Republic, sessions switch between Czech and English. Live Translator captions foreign-language talks in real time so you follow the full programme.

Performance

Most accurate and fastest models

Czech
90.3%

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 room where you cannot ask anyone to repeat

Live captions from any seat

Point the phone toward the nearest PA output or speaker. Captio AI captions whoever is presenting in real time — from the front row or the back of a large conference hall.

Works without venue infrastructure

No hearing loop, no captioning service, no advance booking required. Captio AI works independently via microphone — whether or not the venue has provided any accessibility infrastructure.

Covers what official captioning does not

Official captioning, where it exists, typically covers the main stage only. Q&A sessions, workshops, breakouts, and networking are usually left uncaptioned. Captio AI covers all of it.

Record and review after

Record any session and upload it to Audio Transcription for a full written record. Use AI Summary to extract key takeaways — useful for dense technical content you want to process at your own pace.

60+ languages

For international conferences, foreign-language keynotes, or multilingual panels. Live Translator captions and translates in real time across 60+ languages with no manual switching between speakers.

Works for networking too

The conversations in hallways and at lunch matter as much as the sessions. Captio AI works in any setting — informal, noisy, unstructured — the same way it works in the main hall.

Czech

Why Czech is hard to understand

Consonant clusters

  • Words that pile up consonants with no vowel to see
  • Czech allows dense consonant clusters — and words like 'prst' or 'vlk' built around a syllabic r or l with no vowel at all. From a distant stage these clusters give a lip-reader almost no visual seams, so a deaf attendee cannot break a technical term into readable pieces.

The ř sound

  • A rare trilled sound unique to Czech
  • Czech has the ř — a raised alveolar trill made by combining a rolled r with a fricative, a sound found almost nowhere else. It produces no distinctive lip shape, so a deaf attendee cannot see it, yet it appears in common words and names on the podium.

Vowel length

  • Long and short vowels that change the word
  • Czech vowel length is phonemic — a long vowel makes a different word from a short one. This is a timing distinction, not a lip shape, so at podium pace a deaf attendee cannot see which of two terms was said in a keynote.

Soft consonants

  • Palatalized ď, ť, and ň with barely visible cues
  • Czech contrasts plain and soft (palatalized) consonants — ď, ť, ň — where the softening is a tongue-body gesture with almost no visible cue. A deaf attendee sees the same mouth for a plain and a soft consonant that make different words.

Czech–English code-switching

  • Technical English inside Czech sentences
  • Czech technology and academic speech, especially in Prague and Brno, drops English terms into Czech sentences constantly. A deaf attendee lip-reading Czech meets English phonology on the key vocabulary, then returns to Czech, with no visual signal of the switch.

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The Challenge

Hearing loss and professional access in the Czech Republic

Around 1.3 million people in the Czech Republic live with some form of disability, and recent figures record on the order of 167,000 people with hearing impairment — while older assessments estimated some 300,000 hearing-impaired people including around 15,000 who are profoundly deaf. Against a European backdrop in which roughly one in five people has some hearing loss, a substantial professional population lives and works with hearing difficulty that is often under-supported.

Prague and Brno have become central European conference hubs — the academic congresses of their universities, the technology and business summits at venues like the Prague Congress Centre. These run on spoken Czech delivered over PA systems, with English woven into technical sessions. Real-time Czech captioning of keynotes, panels, and Q&A is rarely provided, and where any accessibility exists it does not reach the breakouts and networking where professional value is built.

Captio AI closes that gap. Point the phone toward the PA and read every Czech keynote and panel answer from any seat, record a dense session for the full transcript, and follow the conversations over a coffee break — so a deaf professional in Prague or Brno gets the same value from the same conference as everyone in the hall.

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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

"Prague tech talks drop English terms into Czech on every point, delivered fast from a far stage. I caught fragments. Captio AI captioned both from my seat. I read the whole session and knew exactly what the launch meant for my team."

Petr N. 🇨🇿
petr.n***@gmail.com
Hard of hearing, Prague — industry conference attendee

"Czech keynotes pile up consonant clusters with no vowels for me to read, and the ř is impossible to see. Captio AI captioned the talk from my seat and I recorded it for the transcript. I followed a full congress session for the first time."

Tereza K. 🇨🇿
tereza.k***@gmail.com
Deaf, Brno — academic researcher

"The soft consonants and long-short vowel pairs give me nothing on the lips, and the Q&A moves fast. Captio AI captioned every audience question. As a panellist I answered what was actually asked instead of guessing."

Jakub S. 🇨🇿
jakub.s***@gmail.com
Hard of hearing, Prague — panellist

"Networking over coffee is where the useful conversations happen, and it used to be the part I stepped back from. Captio AI captioned the informal chats at the reception so I could take part. That is where I met my first investor."

Lucie M. 🇨🇿
lucie.m***@gmail.com
Deaf, Brno — startup founder

"Prague tech talks drop English terms into Czech on every point, delivered fast from a far stage. I caught fragments. Captio AI captioned both from my seat. I read the whole session and knew exactly what the launch meant for my team."

Petr N. 🇨🇿
petr.n***@gmail.com
Hard of hearing, Prague — industry conference attendee

"Czech keynotes pile up consonant clusters with no vowels for me to read, and the ř is impossible to see. Captio AI captioned the talk from my seat and I recorded it for the transcript. I followed a full congress session for the first time."

Tereza K. 🇨🇿
tereza.k***@gmail.com
Deaf, Brno — academic researcher

"The soft consonants and long-short vowel pairs give me nothing on the lips, and the Q&A moves fast. Captio AI captioned every audience question. As a panellist I answered what was actually asked instead of guessing."

Jakub S. 🇨🇿
jakub.s***@gmail.com
Hard of hearing, Prague — panellist

"Networking over coffee is where the useful conversations happen, and it used to be the part I stepped back from. Captio AI captioned the informal chats at the reception so I could take part. That is where I met my first investor."

Lucie M. 🇨🇿
lucie.m***@gmail.com
Deaf, Brno — startup founder

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FAQ

Frequently asked questions

Follow every speaker in Czech.

Captio AI is free to start

Download for free

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