Rio Tutor

Rio Tutor is a full-fledged personal teacher for intensive daily study of any topic — a new language, professional vocabulary, or a subject you want to master. How it works: 1. Pick a topic and copy the lesson prompt from the app. 2. Paste it into your own AI assistant (ChatGPT, DeepSeek or any other). 3. Paste the answer back — Rio lays it out into a day plan with exercises. Every day you get: • A structured lesson: reading, vocabulary, translation, fill-in, word order, matching pairs and more • Instant answer checking with friendly hints (typos, accents, articles) • Progress for the lesson and the day, streaks and statistics • The Attention tab with the mistakes worth reviewing • Pronunciation with your device's voices • 7 interface languages: English, Russian, Ukrainian, Spanish, Portuguese (Brazil), French, German Private by design: no account and no analytics. Your lessons, progress and crystals stay on your device. Ads: one full-screen ad once a day when you first start a lesson (if it doesn't load within a few seconds, your lesson opens right away), plus optional rewarded videos in Rewards (+15 crystals, up to 4 a day). Ads are provided by Google AdMob, which may use your device's advertising identifier according to your consent and tracking choices.