Regional slang and industry jargon, drilled by speaking. You read the situation in your language, hold the button, say it in English — and find out whether a local would have said it that way.


Hold the button and speak. The recogniser is biased toward each phrase so it hears the slang instead of “correcting” it.
Local — that's how they say it. Close — right meaning, wrong wording. Not it. The middle one is the feedback textbooks can't give.
Who says it, where it lands, where it doesn't, and where it came from. Slang without the room it belongs in is a trap.
Hear the phrase in the wild through YouTube — a New Yorker saying it in context, not a studio read.
Nothing, the word count, first letters, or the whole sentence with one key word blanked out. You decide how hard.
Prompts in English, 繁體中文 or 简体中文. Optional AI judge for grey-zone answers with your own Gemini key — no FluentIn servers.
One phrase at a time, thirty seconds each.
“You're at the bodega counter and want the breakfast sandwich…” — in your language, never a translation to memorise.
Speak the English a local would use. Release when you're done.
Local, Close, or Not it — with the reason when you turn on the AI judge.
The phrase, who says it, where it's safe, and a clip of someone saying it for real.
Speech is recognised on your device with Apple's speech framework. The only network calls are the ones you opt into: an AI judge with your own API key, and YouTube's embedded player. Privacy policy · Terms
Fluent in New York — 50 phrases: on line, bodega, chopped cheese, the super, walk-up, stabilized, OMNY, deadass, brick… London, Silicon Valley, Wall Street and Singapore are being written.
No. Tap the blanked word and type the missing letters instead. The judge is the same.
When the on-device matcher can't decide, your transcribed answer and the exercise's phrase list go to Gemini with the API key you paste in Settings, and you get a verdict plus a one-line reason. Without a key the app is fully usable; undecided answers count as wrong.
Each card says where it lands and where it doesn't. Some cards are marked recognition-first: understand them, don't lead with them.
We draft them, and people who live there review them before a pack ships. Corrections: hello@fluentin.app.