Captio AI
🦻 Accessibility + 💻 Productivity App

Serbian 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 Sava Centar or the Belgrade Fair, the speaker is distant and the hall is loud. Point Captio AI toward the nearest PA speaker and read every word of the Serbian keynote from any seat.

🔬Academic and research conferences

At an academic conference — a research congress at a Belgrade university or a scientific meeting in Novi Sad — presenters speak fast and mix in terminology. Captio AI captions in real time and transcribes for later review.

💼Industry and professional events

Industry events, technology summits, and product launches in Belgrade carry content that affects your work. Captio AI captions every speaker so you follow the panel and miss nothing.

📋Workshops and breakout sessions

In a workshop or breakout, several voices contribute in Serbian 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 Serbia, sessions switch between Serbian and English. Live Translator captions foreign-language talks in real time so you follow the full programme.

Performance

Most accurate and fastest models

Serbian
91.9%

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.

Serbian

Why Serbian is hard to understand

Pitch accent

  • Four pitch accents that the lips cannot show
  • Serbian distinguishes four pitch accents — short and long, rising and falling — on stressed syllables. These separate different words but ride entirely on pitch and length, with no lip or jaw cue. From a distant stage a deaf attendee sees identical mouths for words the accent keeps apart.

Ekavian–Ijekavian

  • The jat vowel that reshapes words across regions
  • Standard Serbian is Ekavian, where the old jat vowel surfaces as e, but Ijekavian speakers from western Serbia, Montenegro, and Bosnia render it as ije or je. A deaf attendee calibrated to Belgrade Ekavian meets unfamiliar vowel sequences from an Ijekavian presenter on the panel.

Affricate contrasts

  • č and ć, dž and đ look almost identical
  • Serbian contrasts two pairs of affricates — č versus ć and dž versus đ — that sit very close together and look nearly identical on the lips. In a keynote the fine distinction decides the word but gives a lip-reader nothing to see.

Consonant clusters

  • Dense clusters and syllabic r with no visual seams
  • Serbian permits demanding consonant clusters and a syllabic r — words like 'prst' or 'trg' with no vowel. From an audience seat these run together into a stream that offers a deaf attendee almost no way to break a technical term into readable pieces.

Serbian–English code-switching

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

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The Challenge

Hearing loss and professional access in Serbia

Against a global pattern in which around one in five people has some hearing loss, Serbia carries a substantial burden across its population. The country's deaf and hard of hearing community is organised through a national association of some 37 local organisations, but comprehensive national prevalence data is thin — a gap that itself makes the community harder to plan and provide for. Many deaf and hard of hearing Serbians reach professional life under-supported.

Belgrade and Novi Sad host a growing conference and events sector — the academic congresses of their universities, the technology and business summits at venues like the Sava Centar. These run on spoken Serbian delivered over PA systems, with English woven into technical sessions. Real-time Serbian 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 Serbian 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 Belgrade or Novi Sad 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

"Belgrade tech talks drop English terms into Serbian 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."

Miloš J. 🇷🇸
milos.j***@gmail.com
Hard of hearing, Belgrade — industry conference attendee

"The pitch accents and the close affricates give me nothing on the lips, and the keynote was fast. Captio AI captioned it accurately and I recorded the session. I followed a full congress talk for the first time."

Jelena S. 🇷🇸
jelena.s***@gmail.com
Deaf, Novi Sad — academic researcher

"Ekavian and Ijekavian speakers render the vowels differently, and the panel had both. Captio AI captioned every one and the audience questions. As a panellist I answered what was actually asked instead of guessing."

Nikola P. 🇷🇸
nikola.p***@gmail.com
Hard of hearing, Belgrade — 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."

Ana M. 🇷🇸
ana.m***@gmail.com
Deaf, Belgrade — startup founder

"Belgrade tech talks drop English terms into Serbian 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."

Miloš J. 🇷🇸
milos.j***@gmail.com
Hard of hearing, Belgrade — industry conference attendee

"The pitch accents and the close affricates give me nothing on the lips, and the keynote was fast. Captio AI captioned it accurately and I recorded the session. I followed a full congress talk for the first time."

Jelena S. 🇷🇸
jelena.s***@gmail.com
Deaf, Novi Sad — academic researcher

"Ekavian and Ijekavian speakers render the vowels differently, and the panel had both. Captio AI captioned every one and the audience questions. As a panellist I answered what was actually asked instead of guessing."

Nikola P. 🇷🇸
nikola.p***@gmail.com
Hard of hearing, Belgrade — 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."

Ana M. 🇷🇸
ana.m***@gmail.com
Deaf, Belgrade — startup founder

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FAQ

Frequently asked questions

Follow every speaker in Serbian.

Captio AI is free to start

Download for free

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