Serbian live captions and productivity tool for phone & video calls
For deaf and hard of hearing people.
coming soon
Download for free
Download on theApp Store
Everything you need to follow Serbian phone & video calls
Four tools built for deaf and hard of hearing Serbian speakers.
Follow the call in real time
- Captions appear word by word as the other person speaks
- Works on any call — no app integration required
- Put the call on speaker and point the microphone toward it
- Handles compressed call audio accurately
International and foreign-language calls
- They speak their language — you read in yours
- Translates in real time as they speak
- 60+ languages, no setup
- For family abroad, international business, or travel
Transcribe any call recording
- Record the call and upload for a complete written transcript
- Review instructions, information, and decisions after
- Organised by speaker
- Works on any call recording
Key information extracted from any call
- Important points pulled from any call transcript
- Useful for medical calls, customer service, and work calls
- Organised into clear sections
- Works on any saved recording
Download for free
Download on theApp StoreEvery situation covered
Designed for the real moments that matter — not just quiet controlled environments.
A call home to family in Belgrade, Novi Sad, or Niš — catching up on the week's news with relatives who may speak different regional varieties of Serbian.
A work call with colleagues or clients in Serbia — business Serbian with its formal register and sector-specific vocabulary.
A callback from a Belgrade clinic or a pharmacist in Kragujevac — medical calls where missing a dosage or appointment time carries real consequences.
A call from the bank, the utility company, or a customer service line in Serbia — automated prompts followed by an agent speaking quickly in standard Serbian.
A call from Serbian diaspora in Germany, Austria, or Switzerland, mixing Serbian with German or English mid-sentence.
A WhatsApp or Viber video call with family or friends in Serbia — the platforms of choice for the Serbian diaspora staying connected across time zones.
Most accurate and fastest models
word accuracy
independent benchmark, 2025
real-time captions
first word appears as you speak
Download for free
Download on theApp Store
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.
Why Serbian is hard to understand
Ekavian/Ijekavian split
- The same word sounds different depending on the region
- Belgrade uses Ekavian (mleko, dete) while speakers from Bosnia, Montenegro, and parts of Vojvodina use Ijekavian (mlijeko, dijete). The vowel patterns differ, but lip shapes overlap — a phone call from Novi Sad reads differently from one from the capital.
Soft vs hard palatals
- ć/đ and č/dž share nearly identical lip shapes
- Serbian distinguishes soft palatals (ć, đ) from hard post-alveolars (č, dž) by tongue position alone. Lip shapes are virtually identical. On a video call, the difference between 'kuća' and 'kuča' is invisible.
Final devoicing
- Word-final consonants change sound without changing lip shape
- Serbian devoices consonants at the end of words — 'grad' sounds like 'grat', 'nož' like 'noš'. The lip shape of the final consonant stays the same while the sound shifts, introducing ambiguity at every word boundary in running speech.
Balkan fast tempo
- Unstressed syllables disappear in casual speech
- Informal Serbian drops unstressed syllables and contracts common words heavily. At the speed of a normal phone call — with café noise or street sounds behind the speaker — even hearing callers ask for repetition.
Code-switching
- English loanwords appear mid-sentence without warning
- Younger Belgrade speakers mix English words seamlessly — mejl, okej, kul, fajl — without pause or signal. A lip-reader tracking Serbian word shapes is suddenly presented with English phonology, then back again.
Download for free
Download on theApp StoreHearing loss touches every corner of daily life in Serbia
Applying the Global Burden of Disease 2019 prevalence rates for the European region to Serbia's population of 6.9 million, an estimated 1.1 to 1.4 million people live with some degree of hearing loss — a figure that includes around 280,000 with disabling hearing loss. Despite this scale, Serbian Sign Language has no legal recognition under national law, leaving deaf Serbians without a guaranteed right to interpreter access in healthcare, legal, or government settings.
Serbia adopted its Law on the Prevention of Discrimination Against Persons with Disabilities in 2006 and ratified the UN Convention on the Rights of Persons with Disabilities in 2009. In practice, enforcement is uneven. The Serbian Association of the Deaf reports persistent barriers in employment and public services, with many deaf Serbians unable to independently access bank calls, utility services, or medical consultations without a hearing companion — a dependence that limits privacy and autonomy throughout adult life.
Captio AI captions every Serbian phone call in real time — from a family check-in in Ekavian to a work call in formal Belgrade Serbian — so deaf and hard of hearing users can follow conversations independently, without needing a hearing intermediary on the line.
Download for free
Download on theApp StoreWhat 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.
Private by default
Download on theApp StoreCaptio AI supports 60+ languages
People love Captio AI
"My mother speaks Ijekavian from Sarajevo and I grew up with Ekavian in Belgrade. Even before my hearing loss I mixed them up on calls. Now Captio AI gets both — I finally follow her evening calls without asking her to repeat."
"The customer service lines in Serbia speak so fast. Captio AI gave me the captions and I actually understood the bank agent the first time — no more asking my son to make calls on my behalf."
"My doctor's callbacks go to voicemail because I miss the call. Since I started using Captio AI I pick up every call and read the words as the nurse speaks. It changed how I manage my own healthcare."
"I call family in Serbia on Viber. They switch between Serbian and German words constantly. Captio AI keeps up with both and I haven't missed the family news in months."
"My mother speaks Ijekavian from Sarajevo and I grew up with Ekavian in Belgrade. Even before my hearing loss I mixed them up on calls. Now Captio AI gets both — I finally follow her evening calls without asking her to repeat."
"The customer service lines in Serbia speak so fast. Captio AI gave me the captions and I actually understood the bank agent the first time — no more asking my son to make calls on my behalf."
"My doctor's callbacks go to voicemail because I miss the call. Since I started using Captio AI I pick up every call and read the words as the nurse speaks. It changed how I manage my own healthcare."
"I call family in Serbia on Viber. They switch between Serbian and German words constantly. Captio AI keeps up with both and I haven't missed the family news in months."
Download for free
Download on theApp StoreFrequently asked questions
Follow every call in Serbian.
Captio AI is free to start
coming soon
Download for free
Download on theApp Store