Captio AI
🦻 Accessibility + 💻 Productivity App

Polish live captions and productivity tool for phone & video calls

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.

👨‍👩‍👧Calls with family and friends

A call with parents or grandparents in Warsaw, Krakow, or Gdansk where fast, informal Polish comes through over a mobile connection.

💼Work calls and conference calls

A work call or Teams meeting where formal Polish, industry terms, and English acronyms appear in the same sentence.

🏥Medical and healthcare calls

A callback from an NFZ clinic or private specialist who gives test results and prescription details in rapid medical Polish.

🏦Banks, utilities, and customer service

A call to a bank, ZUS office, or energy provider where automated Polish menus are followed by an agent speaking in regional dialect.

🌍International calls

A call from Polish family or friends settled abroad in Germany, the UK, or the Netherlands who mix Polish with the local language.

📹Video calls — FaceTime, WhatsApp, Zoom

A WhatsApp or Messenger video call with family in Poland where background noise, an unstable connection, and multiple speakers compete for clarity.

Performance

Most accurate and fastest models

Polish
94%

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 calls you have been avoiding

Captions as they speak

Words appear on screen word by word while the other person is still talking. You read what they say at the same pace everyone else hears it — no delay, no reconstruction.

Works on any call app

Captio AI does not need to integrate with any platform. Put the call on speaker, point the microphone toward the audio, and read the captions. It works the same way for any app on any device.

No more asking for repeats

Every word is on screen as it is said. If you missed something, glance at the caption rather than interrupting the call — the full sentence is there.

Handles call audio accurately

Compressed phone audio is less clean than in-person speech. Captio AI is built for real-world audio conditions, including the reduced quality of standard phone and VoIP calls.

Any language

For calls with family abroad, international colleagues, or foreign-language customer service. Live Translator captions and translates in real time with no manual setup.

Record and review after

Record any call and upload it to Audio Transcription. Get a full written record of everything said — useful for medical instructions, work decisions, and anything worth having in writing.

Polish

Why Polish is hard to understand

Consonant cluster density

  • Polish clusters compress to a single visible burst in fast speech
  • Polish is among the world's most cluster-heavy languages — sequences like szcz-, strz-, and zdz- appear at syllable boundaries. In a fast phone call, these multi-consonant clusters compress into rapid bursts where only the final phoneme remains clearly visible on the lips. A deaf caller reads one sound where three were spoken.

Nasal vowel invisibility

  • Polish nasal vowels carry meaning in the voice, not the mouth position
  • Polish has two phonemic nasal vowels — e-nasal and a-nasal — a feature rare in Slavic languages. Their nasal quality is carried in vocal resonance, not in lip or jaw position. On a video call, two words distinguished only by nasality look identical on screen. The grammatical distinction between them dissolves.

Final devoicing

  • Written consonants at word-end are pronounced differently
  • Polish systematically devoices word-final obstruents: the written 'b' in 'chleb' (bread) is pronounced as 'p', the 'z' in 'noz' as 's'. A deaf caller building a lipreading model from written Polish reads the voiced letter and expects one lip shape — but the speaker's lips are making a different one. This mismatch compounds across a conversation.

Palatalization

  • Consonants before front vowels shift to a different lip position
  • Before front vowels, Polish consonants palatalize — /t/, /d/, /n/ shift to softer versions. On a video call, these produce small but meaningful changes in lip rounding that are easily missed at distance or low frame rate. A deaf caller sees 'a consonant before a vowel' but cannot tell which version of the consonant was used.

Regional accent gap

  • Silesian, Kashubian-influenced, and eastern Polish differ from Warsaw standard
  • Silesian Polish, speech influenced by Kashubian, and the eastern borderland accent differ markedly from Standard Warsaw pronunciation in rhythm, vowel quality, and consonant treatment. A family video call connecting Warsaw and Wroclaw — or Warsaw and Bialystok — can involve perceptibly different phonological patterns.

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The Challenge

Hundreds of thousands of deaf and hard-of-hearing Poles navigate a dense phonological system with limited public support

In Poland, newborn hearing screening programmes have identified hearing impairment in 2.97 per 1,000 children — divided between sensorineural, conductive, and mixed cases — across studies involving more than 3.5 million births. Among first-grade schoolchildren in rural areas of the Malopolskie voivodeship, an 11.6% prevalence of hearing loss was recorded. These figures reflect a population where hearing impairment is widely distributed, and where the phonological complexity of Polish — dense consonant clusters, nasal vowels, and systematic final devoicing — makes every spoken interaction a layered challenge for deaf and hard-of-hearing individuals.

Poland has a national newborn hearing screening programme and hearing aids are subsidised through the public health system, with patients today seeking aids at earlier stages of hearing loss than 25 years ago. However, Polish Sign Language (PJM) was formally recognised as a natural language only in 2017. Interpreter provision outside major cities remains limited, and deaf adults in rural areas or smaller towns face significant barriers in healthcare, government, and professional settings where PJM interpretation is simply not available.

Captio AI captions every Polish call in real time — so a deaf family member can follow a video call from Krakow, a work conference call, or a utility company callback without asking anyone to slow down or repeat themselves.

Download for free

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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

"My parents live in Gdansk and their Polish has a Kashubian rhythm I am not used to. On video calls I caught maybe half the words. Captio AI shows the full sentence. I stopped pretending I understood."

Agnieszka W. 🇵🇱
agnieszka.w***@gmail.com
Moderate hearing loss, Warsaw

"Work calls in Polish with industry terminology were always exhausting. Consonant clusters disappear at speed. Captio AI captures them correctly. I keep up with my team now."

Piotr K. 🇵🇱
piotr.k***@gmail.com
Severe high-frequency hearing loss, Krakow

"ZUS called about my application and the agent spoke very fast formal Polish. I had Captio AI open and saw every requirement on screen. I did not miss a single document they needed."

Monika Z. 🇵🇱
monika.z***@gmail.com
Hearing aid user since childhood, Gdansk

"I call my parents in Poland every Sunday. They speak fast and use old-fashioned Polish words I do not hear in London. Captio AI shows everything. Our calls are proper conversations now."

Tomasz M. 🇬🇧
tomasz.m***@gmail.com
Hard of hearing, London (Polish diaspora)

"My parents live in Gdansk and their Polish has a Kashubian rhythm I am not used to. On video calls I caught maybe half the words. Captio AI shows the full sentence. I stopped pretending I understood."

Agnieszka W. 🇵🇱
agnieszka.w***@gmail.com
Moderate hearing loss, Warsaw

"Work calls in Polish with industry terminology were always exhausting. Consonant clusters disappear at speed. Captio AI captures them correctly. I keep up with my team now."

Piotr K. 🇵🇱
piotr.k***@gmail.com
Severe high-frequency hearing loss, Krakow

"ZUS called about my application and the agent spoke very fast formal Polish. I had Captio AI open and saw every requirement on screen. I did not miss a single document they needed."

Monika Z. 🇵🇱
monika.z***@gmail.com
Hearing aid user since childhood, Gdansk

"I call my parents in Poland every Sunday. They speak fast and use old-fashioned Polish words I do not hear in London. Captio AI shows everything. Our calls are proper conversations now."

Tomasz M. 🇬🇧
tomasz.m***@gmail.com
Hard of hearing, London (Polish diaspora)

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FAQ

Frequently asked questions

Follow every call in Polish.

Captio AI is free to start

Download for free

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