Captio AI
🦻 Accessibility + 💻 Productivity App

Swahili 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 Kenyatta International Convention Centre in Nairobi or a venue in Dar es Salaam, the speaker is distant and the room is loud. Point Captio AI toward the nearest PA speaker and read every word of the Swahili keynote from any seat.

🔬Academic and research conferences

At an academic conference — a research congress at the University of Nairobi or a scientific meeting in Dar es Salaam — presenters speak fast and mix in terminology. Captio AI captions in real time and transcribes for later review.

💼Industry and professional events

Industry events and development summits across East Africa carry content that affects your work. Captio AI captions every speaker and panellist so you follow the whole session.

📋Workshops and breakout sessions

In a workshop or breakout, several voices contribute in a Swahili–English mix from around the table. Place Captio AI on the table and follow every contribution, including from the back.

🤝Networking and informal sessions

The most useful conversations often happen over chai 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 a pan-African or international conference, sessions switch between Swahili, English, and French. Live Translator captions foreign-language talks in real time so you follow the full programme.

Performance

Most accurate and fastest models

Swahili
90.7%

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.

Swahili

Why Swahili is hard to understand

Prenasalized consonants

  • Nasal-plus-stop sounds with almost no lip signal
  • Swahili uses prenasalized consonants — clusters written mb, nd, ng, nj where a nasal glides straight into a stop. The nasal onset happens with little visible lip movement, so at a distance a deaf attendee sees the stop but not the nasal that changes the word in a keynote.

Dialect range

  • Coastal, up-country, and East African varieties differ
  • A regional conference in Nairobi or Dar es Salaam draws speakers of coastal Kiswahili (Kiunguja, Kimvita), Tanzanian standard, and the up-country Swahili of Kenya and Uganda. These varieties differ in rhythm and vocabulary, so a deaf attendee re-calibrates for each speaker who takes the stage.

Noun-class agreement

  • Grammar riding on prefixes at the front of every word
  • Swahili marks its many noun classes with prefixes that ripple agreement across a whole sentence. This grammatical information sits on unstressed syllables at the start of words, and when a presenter speaks quickly from a distant podium those prefixes clip and blur on the lips.

Arabic-origin sounds

  • Borrowed consonants in formal vocabulary
  • Formal and technical Swahili draws heavily on Arabic loanwords carrying sounds like 'gh' and 'kh' made far back in the mouth. These appear in exactly the elevated vocabulary a keynote reaches for, and they give a lip-reader little to nothing to work with.

Swahili–English code-switching

  • Technical English inside Swahili sentences
  • East African academic and professional speech mixes Swahili and English constantly — a term of art in English inside a Swahili sentence, then back again. A deaf attendee lip-reading Swahili must switch to English phonology on the technical vocabulary with no visual signal of the change.

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The Challenge

Hearing loss and professional access in East Africa

Hearing loss is a large and rising burden in East Africa. The Kenya 2019 census recorded 153,381 deaf people aged over five, and disabling hearing loss across Sub-Saharan Africa is estimated at around 4.55% of the population — with the WHO projecting that the number of people with hearing loss in Africa could reach 54 million by 2030. School surveys in Kenya and the Kilimanjaro region of Tanzania have found hearing impairment in 7% or more of children, much of it preventable and untreated for lack of services.

East Africa's conference and events sector is growing fast — the academic congresses of Nairobi and Dar es Salaam, the development and technology summits hosted at venues like the Kenyatta International Convention Centre — and these run on spoken Swahili and English delivered over PA systems. Real-time Swahili captioning of keynotes, panels, and Q&A is essentially never provided, and where any accessibility exists it does not reach the breakout sessions and networking where professional value is built.

Captio AI closes that gap. Point the phone toward the PA and read every Swahili keynote and Q&A answer from any seat, record a dense session for the full transcript, and follow the conversations over the chai break — so a deaf professional in Nairobi or Dar es Salaam 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

"Summit keynotes at KICC are Swahili and English mixed, delivered fast from a far stage. I caught fragments. Captio AI captioned both from my seat and I recorded the session. I finally followed a whole plenary instead of borrowing notes afterward."

Juma A. 🇰🇪
juma.a***@gmail.com
Hard of hearing, Nairobi — development-sector professional

"Coastal Tanzanian Swahili and Kenyan up-country Swahili are different on the lips, and the panel had both. Captio AI captioned every speaker without me adjusting. I read the whole discussion for the first time."

Neema M. 🇹🇿
neema.m***@gmail.com
Deaf, Dar es Salaam — academic researcher

"The prenasalized sounds and the fast noun-class prefixes give me nothing on the lips. Captio AI captioned the audience questions from the floor. As a panellist I answered what was actually asked instead of guessing."

Otieno K. 🇰🇪
otieno.k***@gmail.com
Hard of hearing, Nairobi — panellist

"Networking over chai is where the partnerships start, and it used to be the part I stepped away from. Captio AI captioned the informal conversations at the reception so I could take part. That is where our next project came from."

Amina H. 🇹🇿
amina.h***@gmail.com
Deaf, Arusha — NGO programme lead

"Summit keynotes at KICC are Swahili and English mixed, delivered fast from a far stage. I caught fragments. Captio AI captioned both from my seat and I recorded the session. I finally followed a whole plenary instead of borrowing notes afterward."

Juma A. 🇰🇪
juma.a***@gmail.com
Hard of hearing, Nairobi — development-sector professional

"Coastal Tanzanian Swahili and Kenyan up-country Swahili are different on the lips, and the panel had both. Captio AI captioned every speaker without me adjusting. I read the whole discussion for the first time."

Neema M. 🇹🇿
neema.m***@gmail.com
Deaf, Dar es Salaam — academic researcher

"The prenasalized sounds and the fast noun-class prefixes give me nothing on the lips. Captio AI captioned the audience questions from the floor. As a panellist I answered what was actually asked instead of guessing."

Otieno K. 🇰🇪
otieno.k***@gmail.com
Hard of hearing, Nairobi — panellist

"Networking over chai is where the partnerships start, and it used to be the part I stepped away from. Captio AI captioned the informal conversations at the reception so I could take part. That is where our next project came from."

Amina H. 🇹🇿
amina.h***@gmail.com
Deaf, Arusha — NGO programme lead

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FAQ

Frequently asked questions

Follow every speaker in Swahili.

Captio AI is free to start

Download for free

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