Captio AI
🦻 Accessibility + 💻 Productivity App

Swahili live captions and productivity tool for restaurants & cafes

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.

🍽️Dinner with friends

Dinner with friends in East Africa is long, communal, and conversational — shared nyama choma, pilau, or ugali around a table where multiple conversations run at once. Following who said what in fast Swahili requires captioning.

💼Business lunches

Business lunches in Nairobi or Dar es Salaam often mix Swahili and English freely. Missing a key term — a figure, a deadline — in a code-switched sentence can leave you out of the decision entirely.

Cafe catch-ups

A café stop for chai and mandazi is a daily routine across East Africa. Counter orders and quick catch-ups happen in rapid Swahili, and the background noise of a busy town café adds another barrier.

🌍Restaurants abroad

Travelling through Kenya, Tanzania, Uganda, or Rwanda means encountering regional Swahili varieties and local languages mixed in. Captio AI captions whatever variety is spoken.

🎂Celebrations and group meals

Group celebrations — harambee meals, graduation dinners, weekend nyama choma gatherings — are loud and festive. Overlapping conversation in Swahili around a shared grill is genuinely hard to follow without real-time captions.

❤️Dates and one-on-one meals

A one-on-one dinner in a Nairobi restaurant carries the full social pressure of unbroken conversation. Missing a sentence — especially when the speaker switches registers — creates a gap that real-time captions close.

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

Download for free

Download on theApp Store
Captio AI in everyday use
Why Captio AI

Built for the table — however noisy the room

Follows the person across the table

Point the microphone toward the person speaking and Captio AI captions them through the background noise. You do not need to face them, watch their lips, or lean in.

Works through restaurant noise

Restaurant noise averages 80 dBA — well above comfortable conversation level. Captio AI is built for these real environments, not quiet controlled rooms.

Place it and forget it

Put the phone on the table between you and the other person, microphone facing them. You glance at it as needed. No adjusting between sentences, no managing the setup.

No asking for repeats during the meal

Every word appears in real time. If you missed something, the caption is there — you do not need to stop the conversation and ask anyone to say it again.

Any language

For restaurants abroad, multilingual dining companions, or waitstaff who speak a different language. Live Translator captions and translates in real time with no manual setup.

Discreet

A phone on a restaurant table is unremarkable. Captio AI runs quietly, the screen faces you, and most dining companions adapt naturally once they understand what it does.

Swahili

Why Swahili is hard to understand

Sheng urban mixing

  • Nairobi street Swahili blends three languages in one sentence
  • Sheng — the urban youth variety spoken across Nairobi and East African cities — freely mixes Swahili, English, and Kikuyu within a single sentence. For a deaf or hard of hearing person expecting standard coastal Swahili, Sheng's unpredictable switching makes lip-reading almost impossible: vocabulary, rhythm, and lip shapes shift mid-phrase.

Coastal vs inland gap

  • Standard Swahili vs regional varieties look different
  • Coastal Swahili (Mombasa, Zanzibar) preserves Arabic loanword phonology and a distinct vowel quality from the inland varieties spoken in Nairobi, Dar es Salaam, and Kampala. The same word can sound different enough across regions that a lip-reader attuned to one variety misses the other entirely.

Noun class morphology

  • Agreement prefixes hide meaning in short, similar-looking syllables
  • Swahili uses 16 noun classes, each triggering different agreement prefixes on verbs and adjectives. In fast table speech, these short agreement prefixes are said lightly and can look nearly identical on the lips. Missing them removes the grammatical anchor that tells you what or who the sentence is about.

Fast casual speech

  • Rapid conversation compresses already short words
  • Everyday Swahili in a busy restaurant setting is spoken fast. Swahili words are already relatively short compared to European languages, and at conversational pace they compress further, leaving a lip-reader with minimal visual time on each word.

English code-switching

  • Formal and business settings shift registers mid-sentence
  • In Nairobi, Dar es Salaam, and Mombasa upscale restaurants, Swahili and English are used interchangeably depending on the perceived status of the customer. Switching register mid-sentence creates double unpredictability for a deaf or hard of hearing diner.

Download for free

Download on theApp Store
The Challenge

Hearing loss in East Africa: the cost of an unheard table

East Africa carries a significant and underreported burden of hearing loss. A 2016 review in Tropical Medicine & International Health found that hearing impairment prevalence in African population-based studies ranged as high as 31%, with school-based studies showing a median of 6.6%. In Kenya, the 2008 National Survey for Persons with Disabilities estimated approximately one million deaf individuals in a population of 50 million. In Tanzania, disability surveys document over four million people with disabilities, with hearing impairment among the most common conditions.

Access to intervention remains extremely limited. Across sub-Saharan Africa, hearing aids are scarce, audiological services are concentrated in capital cities, and sign language education reaches only a small fraction of deaf students. Research from rural East Africa found hearing loss to be the most frequently identified childhood disability, linked to chronic otitis media and preventable infections. For adults navigating urban restaurant life in Nairobi, Dar es Salaam, or Mombasa, untreated hearing loss in noisy public environments removes them from the social fabric of shared meals.

Captio AI captions Swahili conversation in real time — whether a friend at a Nairobi nyama choma table tells a story over grilled meat or a server at a Zanzibar seafood restaurant explains the day's catch.

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

"Nairobi restaurants mix Swahili and English so fast you can't predict which word comes next. Captio follows the whole thing and I stop asking my friend to repeat herself."

Amina W. 🇰🇪
amina.w***@gmail.com
Nairobi, moderate bilateral hearing loss

"Business lunches used to be the most stressful part of my week. I'd catch Swahili but miss the English parts — or the other way around. Captio captures both and I'm actually part of the decision."

David M. 🇹🇿
david.m***@gmail.com
Dar es Salaam, wears hearing aids

"Coastal Swahili at a seafood restaurant in Mombasa is its own dialect. I grew up lip-reading Nairobi Swahili — coastal is different. Captio handles it accurately and I finally enjoy eating out near home."

Grace A. 🇰🇪
grace.a***@gmail.com
Mombasa, congenital deafness

"Group nyama choma with ten people talking at once is exactly the situation where I used to just smile and nod. Captio lets me actually follow the conversation and chip in with my own stories."

James O. 🇺🇬
james.o***@gmail.com
Kampala, sensorineural hearing loss

"Nairobi restaurants mix Swahili and English so fast you can't predict which word comes next. Captio follows the whole thing and I stop asking my friend to repeat herself."

Amina W. 🇰🇪
amina.w***@gmail.com
Nairobi, moderate bilateral hearing loss

"Business lunches used to be the most stressful part of my week. I'd catch Swahili but miss the English parts — or the other way around. Captio captures both and I'm actually part of the decision."

David M. 🇹🇿
david.m***@gmail.com
Dar es Salaam, wears hearing aids

"Coastal Swahili at a seafood restaurant in Mombasa is its own dialect. I grew up lip-reading Nairobi Swahili — coastal is different. Captio handles it accurately and I finally enjoy eating out near home."

Grace A. 🇰🇪
grace.a***@gmail.com
Mombasa, congenital deafness

"Group nyama choma with ten people talking at once is exactly the situation where I used to just smile and nod. Captio lets me actually follow the conversation and chip in with my own stories."

James O. 🇺🇬
james.o***@gmail.com
Kampala, sensorineural hearing loss

Download for free

Download on theApp Store
FAQ

Frequently asked questions

Have a real conversation through the noise in Swahili.

Captio AI is free to start

Download for free

Download on theApp Store