Switch your phone.
Actually read it.

Immersion stops working the moment you stop noticing the words. Cairn explains any word on your screen, in the sentence you found it, without leaving the app you were in.

Tap mode on

Tap any underlined word

Dictionary, reading and audio work offline. Only the explanation asks the network.

Three seconds, and you never left the app.

  1. Arm it

    Tap Cairn in the shade, or put the tile in Quick Settings. It stays on until you turn it off.

  2. Tap the word

    A menu, the keyboard, a chat, a button. Cairn reads the text the screen is already drawing.

  3. Carry on

    Meaning, pronunciation, what the word is doing here, one line of grammar. Then you are back.

A translator hands you a word. You needed the sentence.

Every word on a phone is doing one specific job in one specific place, and a dictionary cannot know which.

A translator says

entretien

maintenance

Cairn says

entretien

ɑ̃.tʁə.tjɛ̃

upkeep · maintenance · interview

Maintenance here. The same word is what you call a job interview, which is the sense you are far more likely to meet away from a phone.

Seven dictionaries, on the phone, working with the aeroplane mode on.

Each downloads once. The size is what it costs you to fetch.

  • 学习 6.9 MB Chinese 中文
  • 24.4 MB Japanese
  • apprendre 13.6 MB French Français
  • lernen 15.1 MB German Deutsch
  • aprender 26.4 MB Spanish Español
  • imparare 25.5 MB Italian Italiano
  • aprender 13.3 MB Portuguese Português

Not yet Korean · Russian · Arabic · Hindi · Thai · Vietnamese · Indonesian · Turkish · Polish · Dutch · Swedish

Everything that costs nothing to run is free forever.

Only the AI explanation costs money each time, so it is the only thing with a number against it: 20 a week signed out, 40 signed in. When you reach it, this list still works.

  • The offline dictionary
  • Pinyin, furigana and pronunciation
  • Spoken audio
  • Saved words, forever
  • Seven days of history
  • Sync across devices
  • On-device translation

It reads your screen. Here is the whole of it.

Cairn uses Android’s accessibility service to read text the screen is already drawing. That is a serious permission, so the limits are worth stating plainly.

Put the phone back to work.

Free to start, no account needed, one permission to grant.