Thai live captions and productivity tool for group settings
For deaf and hard of hearing people.
coming soon
Download for free
Download on theApp Store
Everything you need to follow Thai group settings
Four tools built for deaf and hard of hearing Thai speakers.
Follow whoever is speaking
- Captions the active voice at any moment
- Works at dinner tables, parties, and social gatherings
- Place the phone in the centre of the group
- Any accent, any pace
For multilingual groups
- Each person speaks their own language
- You read in yours, in real time
- 60+ languages, no switching
- For international families, mixed-language groups, travel
Transcribe any group conversation
- Record and get the full conversation in writing
- Organised by speaker
- Review who said what after the fact
- Any group size, any language
Key points from any group discussion
- Decisions and takeaways extracted automatically
- Useful for group meetings and community discussions
- 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 Thai family dinner — a Songkran gathering, a merit-making meal, or a Sunday family lunch — with relatives talking across multiple tables.
A house party or a celebration where the room fills with overlapping conversation and background music from a Bluetooth speaker.
A catch-up with friends over pad thai and somtam at a neighbourhood restaurant, with quick conversation going in multiple directions.
A community meeting at a local temple, neighbourhood committee, or village gathering where everyone participates freely.
Three generations at a family meal — grandparents from Chiang Mai in Northern Thai, parents in Central Thai, teenagers mixing in English.
A casual evening at a friend's home or a local market food stall where small groups chat informally over food and drinks.
Most accurate and fastest models
character accuracy
independent benchmark, 2025
real-time captions
first word appears as you speak
Download for free
Download on theApp Store
Built to keep you in the conversation, not just in the room
Captions whoever is speaking
Captio AI follows the dominant voice at any moment — whoever is loudest in the microphone's direction. In a group conversation, this tracks the active speaker naturally.
Works through background noise
Restaurants, living rooms, parties, outdoor gatherings. Moderate background noise does not prevent accurate captions — Captio AI is built for real environments, not quiet rooms.
Place it in the centre and forget it
Put the phone on the table or in the middle of the group, microphone facing the conversation. No positioning it after every speaker change, no adjusting between voices.
Less effort, less fatigue
The cognitive load of following a group conversation by lip-reading and reconstructing speech is exhausting. Captio AI handles the following so you can direct your energy toward actually being in the conversation.
60+ languages
For multilingual families, mixed-language social groups, or gatherings where people switch between languages mid-conversation. No setup required between language changes.
No setup between conversations
Open the app and place the phone. No configuration per setting, no briefing the group, nothing to manage between conversations. It works for any group, in any situation.
Why Thai is hard to understand
Five-tone invisibility
- Tone changes the word — nothing shows on the lips
- Thai uses five lexical tones — low, mid, high, falling, and rising — to distinguish meaning. The same syllable spoken with a different pitch is a completely different word. At a family dinner, all five tones produce identical lip patterns, making lip-reading Thai near-impossible without additional context.
Mid-low tone confusion
- Even native speakers confuse the closest tones
- Research shows that the mid and low tones in Thai are difficult to distinguish even for native speakers using their hearing. For a deaf person lip-reading at a social gathering, these two tones — which look identical on the lips — compound an already ambiguous visual signal.
Regional dialect gap
- Bangkok, Chiang Mai, and Isan Thai sound different
- Central Thai (Bangkok), Northern Thai (Kham Mueang/Lanna), Northeastern Thai (Isan), and Southern Thai are distinct enough to cause real comprehension difficulty across regional lines. A deaf person who has learned to lip-read Central Thai finds Isan or Northern Thai speakers at the same gathering using a substantially different phonological system.
Particle reduction
- Final particles carry meaning but disappear in fast speech
- Thai sentence-final particles signal politeness, questions, and emphasis. In casual social conversation, these particles are compressed or dropped entirely. A deaf person loses critical information about the social register and intent of an utterance when particles disappear.
Fast connected speech
- Words run together in natural social conversation
- Relaxed Thai social speech at gatherings runs syllables together and reduces unstressed vowels. Syllable boundaries that appear in careful speech dissolve in animated family or friend conversation, making the visual lip pattern increasingly unpredictable.
Download for free
Download on theApp StoreHearing loss in Thailand: the scale of daily exclusion
A Bangkok hearing health survey found that 53.02% of participants showed some degree of hearing loss, with 2.8% having moderate or greater impairment. Among the country's more than 2 million registered disability card holders, approximately 18% are hearing impaired — around 360,000 people. Older adults are disproportionately affected: those aged 65 and over show 8.56 times greater risk of hearing loss than younger age groups. Thailand ratified the UN Convention on the Rights of Persons with Disabilities in 2008 and passed the Persons with Disabilities Empowerment Act, which entitles deaf and hard-of-hearing people to free or subsidised sign language interpretation and reasonable accommodation in public services.
In practice, however, enforcement is uneven. The number of registered sign language interpreters in Thailand remains small relative to the deaf population, and the majority are concentrated in Bangkok. Most hospitals outside the capital lack visual queue systems or designated accessibility points for deaf patients. For deaf and hard-of-hearing people in provincial Thailand — where Isan, Northern Thai, or Southern Thai dialects are spoken — the gap between legal entitlement and lived access is particularly wide. Thai Sign Language was recognised as the national language of deaf Thais in 1999, but community social events, family gatherings, and informal settings receive no interpretation support.
Captio AI captions Thai conversation in real time on a phone screen — so a deaf family member at a Songkran dinner or a multigenerational gathering in Bangkok, Chiang Mai, or Khon Kaen can follow every story, joke, and announcement as it is spoken, without relying on someone to relay the conversation.
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
"At family Songkran dinners my relatives from Isan and my Bangkok family talk at the same time. Captio AI followed both accents — I finally sat at the table instead of watching."
"Northern Thai and Central Thai sound very different. The app handled my grandmother's Kham Mueang and my cousins' Bangkok Thai in the same session without getting confused."
"At neighbourhood gatherings in Isan the conversation goes fast and everyone talks at once. Captio AI keeps up with the pace — I stopped missing the funny stories."
"Southern Thai is very different from Bangkok Thai and most apps just give up. This one got my family's conversation right — I could follow the whole merit-making meal."
"At family Songkran dinners my relatives from Isan and my Bangkok family talk at the same time. Captio AI followed both accents — I finally sat at the table instead of watching."
"Northern Thai and Central Thai sound very different. The app handled my grandmother's Kham Mueang and my cousins' Bangkok Thai in the same session without getting confused."
"At neighbourhood gatherings in Isan the conversation goes fast and everyone talks at once. Captio AI keeps up with the pace — I stopped missing the funny stories."
"Southern Thai is very different from Bangkok Thai and most apps just give up. This one got my family's conversation right — I could follow the whole merit-making meal."
Download for free
Download on theApp StoreFrequently asked questions
Keep up with the group in Thai.
Captio AI is free to start
coming soon
Download for free
Download on theApp Store