Captio AI
🦻 Accessibility + 💻 Productivity App

Greek live captions and productivity tool for traveling

For deaf and hard of hearing people.

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Captio AI app showing live captions

Download for free

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Use Cases

Every situation covered

Designed for the real moments that matter — not just quiet controlled environments.

✈️Airports and boarding

Gate changes and boarding calls at Athens Eleftherios Venizelos (ATH) or Thessaloniki Macedonia Airport (SKG) come in Greek and English. Captio AI captions both languages so you catch gate numbers and boarding times.

🚂Train stations and public transport

Greek train services (Hellenic Train) announce stops in Greek. At Athens Larissis or Thessaloniki central station, Captio AI captions the ticket window exchange and platform PA in real time.

🏨Hotels and check-in

A hotel receptionist in Athens or on Santorini explaining check-in details and local tips in Greek. Place Captio AI on the desk and follow the full conversation without asking for anything repeated.

🗺️Navigating and asking for help

Asking for directions near the Acropolis in Athens or navigating Heraklion's old port area. Fast Greek from locals — Captio AI captions their reply so you find your way without confusion.

🛃Customs and immigration

Greek border control and customs at Athens Eleftherios Venizelos speak quickly in formal Greek and English. Captio AI captions every question so you respond accurately and confidently.

🎭Tours and activities

A guide at the Acropolis and Parthenon, the Palace of Knossos in Crete, or Ancient Olympia delivering Greek commentary on classical history. Captio AI captions in real time so you follow every detail.

Performance

Most accurate and fastest models

Greek
92.6%

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 a world that announces everything by sound

Captions any spoken exchange in real time

Airport staff, hotel receptionists, taxi drivers, tour guides. Hold the phone toward whoever is speaking and read the captions — in any setting, in any country.

60+ languages — no language barrier

Live Translator captions and translates in real time. They speak their language — you read in yours. For every country, every language, no manual setup between interactions.

Works anywhere with a data connection

Wi-Fi or mobile data. A local SIM or roaming plan keeps Captio AI running in any country — airports, hotels, rural areas, and everywhere in between.

Handles travel environments

Noisy airports, busy stations, echoing hotel lobbies. Captio AI is built for real environments — not quiet controlled rooms. It captions through the ambient noise of travel.

Discreet in any public setting

Hold the phone or place it near the speaker. Captio AI runs quietly and draws no attention — useful in customs, immigration, and any formal travel interaction where discretion matters.

Private by default

Travel conversations — customs declarations, hotel bookings, personal exchanges — are never stored or shared. Audio is processed in real time and discarded immediately.

Greek

Why Greek is hard to understand

Voiced fricatives vs stops

  • Greek β, γ, δ are fricatives — not the stops that match their lip positions
  • Modern Greek letters β, γ, δ are pronounced as voiced fricatives /v/, /ɣ/, /ð/ — not as the stops /b/, /g/, /d/ that foreign learners and many lip-readers expect from their visual appearance in Latin script. At Athens Eleftherios Venizelos Airport or a Piraeus ferry terminal, a check-in agent or immigration officer uses these fricatives in standard vocabulary. A deaf traveler reads lips and maps the mouth shape to the wrong phoneme — a systematic mismatch between visual expectation and auditory reality.

Velar fricative /x/

  • Greek χ (chi) is produced at the back of the mouth — invisible on the lips
  • Standard Modern Greek has the voiceless velar fricative /x/ (χ) in many common words. This sound is produced at the soft palate — no lip or jaw movement. At a hotel counter in Thessaloniki or a ticket office at Corfu port, a Greek staff member using words with χ produces nothing visible on their face that corresponds to the most commonly written consonant in Greek travel vocabulary.

Cypriot Greek gemination

  • Cypriot Greek has geminate consonants absent from standard Modern Greek
  • Cypriot Greek — spoken in Cyprus — has geminate consonants that are not present in standard Athenian Greek. A deaf traveler calibrated to standard Modern Greek lands at Larnaca or Paphos International Airport and encounters a phonological system with an additional consonant dimension — doubled consonants — at the hotel desk and immigration booth, without any visual signal that they have arrived in a different phonological variety.

Northern Greek vowel reduction

  • Northern Greek reduces unstressed /i/ and /u/ — words change shape in Thessaloniki
  • Northern Greek dialects (Macedonia, Thrace) delete or significantly reduce unstressed high vowels /i/ and /u/ — a pattern absent from standard Athenian Greek. A deaf traveler calibrated to standard southern Greek arrives at Thessaloniki Macedonia Airport to find that common words sound and look different on the speaker's lips because vowel segments have disappeared from unstressed positions.

Fast speech at island ferry terminals

  • Island and port Greek is fast and informal — tourist-directed Greek is slower and different
  • The Greek spoken by staff at Piraeus port, Heraklion port in Crete, or Santorini's Athinios ferry terminal is fast, informal, and heavily reduced. A deaf traveler who prepared from tourist-directed or textbook Greek encounters a compressed, elided variety at island ferry crossings that bears little resemblance to the phonological form they practiced from.

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The Challenge

Hearing loss and travel accessibility in Greece

A cross-sectional study from Greece — one of the few dedicated to the Greek deaf and hard of hearing population — found that across all SF-36v2 quality-of-life dimensions, deaf adults scored significantly lower than hearing adults. The study also identified that in Greece, people with hearing disabilities are systematically excluded from health policy and planning processes, and that Greece provides limited comprehensive data on hearing loss prevalence compared to other European countries. Applying WHO European regional estimates to Greece's population of approximately 10.7 million — where around 20% of the European population have some degree of hearing loss — suggests approximately 2 million Greeks navigating daily life with hearing difficulty.

Greece's travel infrastructure — including Athens Eleftherios Venizelos (handling over 28 million passengers per year), Hellenic Train's intercity network, and the island ferry network connecting over 120 inhabited islands — communicates critical travel information through spoken Greek PA announcements. Ferry schedules at Piraeus port are particularly acute: dozens of routes depart within short windows, and last-minute gate, dock, or departure time changes are communicated verbally over port PA systems. For deaf and hard of hearing travelers at Piraeus, Heraklion, or Santorini's Athinios port, audio-only information delivery creates a direct risk of missing a ferry crossing.

Captio AI captions Greek in real time — whether a gate announcement at Athens Eleftherios Venizelos, a dock change announcement at Piraeus port, or a guide at the Acropolis — so a deaf traveler in Greece follows every instruction and announcement without depending on audio infrastructure built without them in mind.

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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

"Piraeus port dock changes come in fast Greek over a busy port PA. I held Captio AI toward the speaker and the gate number appeared on screen. I've missed ferries before because I couldn't hear the dock reassignment. Not this time."

Nikos P. 🇬🇷
nikos.p***@gmail.com
Hard of hearing, Athens — frequent ferry traveler

"Northern Greek at Thessaloniki train station sounds different from Athens Greek — vowels drop out that I expect to hear. Captio AI captioned the platform announcement and departure time accurately. Right train, right platform."

Elena M. 🇬🇷
elena.m***@gmail.com
Deaf, Thessaloniki — domestic traveler

"Cypriot Greek at Larnaca International is different from standard Greek. Most tools give up on Cypriot. Captio AI captioned the check-in agent's questions accurately — gate, boarding time, and baggage policy. No misunderstanding."

Andreas V. 🇨🇾
andreas.v***@gmail.com
Severely deaf, Nicosia — Cypriot traveler

"The guide at the Palace of Knossos spoke fast Greek with a Cretan accent. Captio AI captioned the entire Minoan history — the bull-leaping frescoes, the labyrinth legend, the archaeologists who uncovered it. I followed every word."

Maria S. 🇬🇷
maria.s***@gmail.com
Hard of hearing, Heraklion — tourist on Crete

"Piraeus port dock changes come in fast Greek over a busy port PA. I held Captio AI toward the speaker and the gate number appeared on screen. I've missed ferries before because I couldn't hear the dock reassignment. Not this time."

Nikos P. 🇬🇷
nikos.p***@gmail.com
Hard of hearing, Athens — frequent ferry traveler

"Northern Greek at Thessaloniki train station sounds different from Athens Greek — vowels drop out that I expect to hear. Captio AI captioned the platform announcement and departure time accurately. Right train, right platform."

Elena M. 🇬🇷
elena.m***@gmail.com
Deaf, Thessaloniki — domestic traveler

"Cypriot Greek at Larnaca International is different from standard Greek. Most tools give up on Cypriot. Captio AI captioned the check-in agent's questions accurately — gate, boarding time, and baggage policy. No misunderstanding."

Andreas V. 🇨🇾
andreas.v***@gmail.com
Severely deaf, Nicosia — Cypriot traveler

"The guide at the Palace of Knossos spoke fast Greek with a Cretan accent. Captio AI captioned the entire Minoan history — the bull-leaping frescoes, the labyrinth legend, the archaeologists who uncovered it. I followed every word."

Maria S. 🇬🇷
maria.s***@gmail.com
Hard of hearing, Heraklion — tourist on Crete

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FAQ

Frequently asked questions

Navigate confidently in Greek.

Captio AI is free to start

Download for free

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