Language Learning vs N

Polyglot helps you learn several languages at the same time, all on your device and all private. Most apps make you pick one language and follow one rigid path. Polyglot is built for people who want more. Study Spanish, French, German, Japanese, Korean and more side by side, with tools that adapt to you. WHY POLYGLOT - Learn many languages at once, with a color for each one so they never blur together. - A private, on-device AI tutor builds lessons, quizzes and conversations for any topic you pick. - Smart flashcards use proven spaced repetition so you review at the perfect moment. - Fast, friendly games turn daily practice into a habit. - Speak out loud and get instant pronunciation feedback. - Translate anywhere, even offline. - Your data stays on your device. No account required. SMART FLASHCARDS Polyglot schedules every card with a modern spaced repetition engine, so you spend time on the words you are about to forget and breeze past the ones you know. Each card includes an example sentence and pronunciation, with text to speech in a single tap. AN AI TUTOR IN YOUR POCKET Type any topic, like ordering food or a job interview, and Polyglot writes a focused lesson with vocabulary, useful phrases, a short overview and a tip. Add the new words to your flashcards in one tap. Practice freely in conversation mode and get gentle, in context corrections, or take a fresh AI quiz made just for you. It runs on device, so it works without a connection and keeps your practice private. GAMES THAT MAKE IT STICK - Match Pairs: link words with their meanings. - Fill the Blank: complete the missing word. - Build the Sentence: arrange word tiles into real sentences. - Listen and Choose: train your ear. - Say It: speak the answer and get scored. Mix all of your languages in one session to get sharp at telling them apart. SEE YOUR PROGRESS Track reviews, sessions and streaks. A clean chart and calendar show your activity at a glance, and a mastery bar for each language shows how far you have come. TRANSLATE ANYWHERE Quick translation is built in and works offline. Prefer the highest quality? Download an optional model for full offline translation anywhere you go. PRIVATE BY DESIGN Polyglot works without an account and keeps your learning on your device. Optional iCloud sync keeps your cards in step across your iPhone and iPad. LANGUAGES Learn Spanish, French, German, Italian, Portuguese, Japanese, Chinese and Korean, explained in the language you already know. Start today. Pick your languages, set a daily goal, and build your streak.

The classic dual n-back task, built the way a concentration game should be: no ads, no account, and nothing you do ever leaves your phone. WHAT IS DUAL N-BACK? A square lights up on a 3×3 grid while a letter plays. Your job: tap when the position — or the sound — matches the one from N steps back. It starts gentle at 1-back and scales as far as you can handle. Dual n-back is one of the most studied tasks in working-memory research, and this app follows the trial structure of the original Jaeggi et al. (2008) protocol. EVERYTHING YOU NEED TO TRAIN • Guided tutorial — learn 1-back in two minutes, no jargon • Full dual n-back (position + sound) at any N-level, free • Adaptive difficulty — the app suggests moving up or down based on your results, or handles it automatically with Pro • Instant feedback — color flashes for hits, misses, and false alarms, with glyphs for color-blind players • Statistics — hit rates per stimulus type, difficulty trends, games played, streaks • A daily reminder you control, dark mode, haptics PRO, IF YOU WANT MORE One upgrade unlocks color and shape stimuli (up to quadruple n-back), automatic level progression, your full statistics history, and match-rate tuning. Subscribe monthly or annually (the annual plan starts with a 7-day free trial). Prefer to buy once and own it? Lifetime is a first-class option, not an afterthought. PRIVATE BY DESIGN The app works completely offline. No account, no tracking, no third-party SDKs, and no analytics leaving your device — the App Store privacy label reads "Data Not Collected" because there is nothing to collect. Your training history belongs to you and stays on your iPhone. AN HONEST NOTE ON "BRAIN TRAINING" Research on whether n-back gains transfer to broader abilities is genuinely mixed, and we won't pretend otherwise. What we promise is a faithful, distraction-free version of the classic task and a clear view of your own progress. You will get better at n-back — where that takes you is your experiment. Questions or feedback: nback.app.contact@gmail.com Terms of Use: https://mpskowron.github.io/nback-legal/terms.html Privacy Policy: https://mpskowron.github.io/nback-legal/privacy.html N-Back Pro subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings. Unused trial time is forfeited when a purchase completes. Lifetime is a one-time purchase, not a subscription.