Advanced Dual N vs Echo

Advanced Dual N-Back is the working memory protocol from the research, built to be done every day: one visual stream, one audio stream, and a level that follows you. Inspired by dual n-back working-memory research, including Jaeggi et al. (2008). HOW IT WORKS In each session, a sequence of positions and sounds is presented simultaneously. Your task: identify when the current stimulus matches the one from N steps back. As you improve, N increases, keeping you always at the edge of your capacity. FEATURES • Classic Dual N-Back protocol (position + audio) • Workshop library: all 28 Brain Workshop combinations and 110 variants, from Quad and Pentuple to Crab, multiple objects and cross-modal tasks • Arithmetic, Crab-Back and Image Pairs presets for when classic gets easy • Seven sound sets including piano, Morse and NATO, and grids up to 5x5 • Training profiles, plus session export and import • Adaptive difficulty: N adjusts automatically based on your performance • Detailed session history and progress charts • Customizable session length and number of trials • Daily reminders to keep your training streak • Offline. No internet connection required • Premium features available through an optional one-time in-app purchase. No subscription • Clean, distraction-free interface THE SCIENCE Working memory is the mental workspace your brain uses to hold and manipulate information in real time. This app provides structured working-memory practice. It does not diagnose or treat a medical condition or guarantee improvements in intelligence. You start at 2-back, the level the original study used, after a short tutorial that teaches one stream at a time. Most people aim for 3 to 5 with consistent training.

You just spent an hour scrolling and remember none of it. That's not your fault. Every other app is built to fragment your attention and hand it back in small, restless pieces. Echo does the opposite. A number appears. A few seconds later, another. Add the new one to the number you saw a few steps back — and type it before it slips away. No feed. No autoplay. No bottomless content. Just one number at a time, and the quiet pressure of holding something in your head. It's deceptively hard, and that's the point. The more it pulls on your short-term memory, the more it asks for the one thing the feed never does: your full attention. — Three difficulties: look back 1, 2, or 3 steps — Path mode: levels that ramp from gentle to merciless — Hands-free Voice mode: it reads each number and listens for your answer, in English or Mandarin — eyes off, screen down — A signature echo tone, synthesized live, on a pitch-black canvas — Streak and best score — no leaderboard to perform for — Fully offline. No account. No ads in your face. Echo Pro (one-time, optional): every stage's 2-back and 3-back levels, plus unlimited Voice mode. Buy once. No subscription. Put the feed down for ninety seconds. See how long your streak lasts.