KlioAI: Learn English Words

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Contains adsIn-app purchases

About this app

KlioAI is an English learning app built around one idea: a word is only yours once it comes back to you when you need it.

SPEAK, OUT LOUD, IN A REAL SITUATION
Hold the button and talk. The tutor answers out loud, in character. Order a coffee, check into a hotel, explain a symptom at the doctor, return something you bought, or just talk about your day. When you say something that could be said better, the better version appears under your own reply — not a red mark, a sentence you can use.

READ REAL BOOKS
Whole books, free to read: Sherlock Holmes, Aesop's Fables, The Happy Prince, Dr Jekyll and Mr Hyde, and more, sorted by CEFR level. Tap any word you do not know and it is explained inside the sentence it came from — not a dictionary entry for every possible meaning, the one meaning that is on the page in front of you. One more tap and the word joins your list, with the sentence.

REVIEW BEFORE YOU FORGET
Every word you save comes back on the day you are about to lose it, and not before. You say how it went — hard, good, easy — and that answer decides when you see it next. A strength bar on your word list shows which words have taken hold and which are still slipping.

A PLAN THAT ENDS
Today's plan is short and finite: the words due for review, a few new ones, a quick translation set. Work through it and you are done for the day. Nothing in this app is designed to keep you scrolling.

PRACTISE THE REST
- Translation, built from your own saved words
- Reading passages with comprehension questions, A1 to C2
- Writing tasks with AI feedback on vocabulary, coherence and relevance
- Grammar guides with worked examples, and a quiz on the subtopic you just read
- Pronunciation: read aloud, record, and get a clarity report word by word

IN YOUR LANGUAGE
The interface speaks English, Turkish, German, Spanish, Portuguese, Italian and French. Meanings, corrections and explanations arrive in the language you tell us you speak, not in English by default.

WHAT IT COSTS
The word list, reviews, books and grammar guides are free. AI features — the speaking tutor, writing evaluation, generated sentences and quizzes — run on a usage quota. New accounts start with a 7-day trial quota, and PRO lifts it. You can cancel any time in Google Play.

No ads. No streak that shames you. No leaderboard.