Dual N vs A

Designed for structured cognitive training, Dual N-Back challenges your working memory daily and helps you build sustained focus over time Dual N-Back is one of the few cognitive tasks studied in academic research with evidence suggesting improvements in working memory and fluid intelligence when practiced consistently. This app gives you a precise, distraction-free training environment plus the analytics you need to measure real progress. What you’ll get - Adaptive Dual (visual + audio) and extended modes, the app automatically raises N-level as you improve. - Session metrics: N-level, Accuracy (%), Mean Reaction Time (ms), track what's changing, not just how you feel. - Long-term charts & heat map (Premium): accuracy trends, reaction time improvements, N-level distribution and calendar streaks. - Guided Plans: 4-Week Boost, Daily Micro-Sessions, and Research-Mode for lab-style protocols. - Clean, low-distraction UI (Dark/Light), ergonomic controls for thumb response. - Customizable training environment, adjust voice, haptics and stimulus timing to match your preferred intensity. Freemium model & Honeymoon trial Enjoy full Premium access free for the first 3 days and experience the complete training system, unlimited sessions, ad-free focus, and advanced analytics that reveal your long-term cognitive growth. Premium unlocks detailed progress history, deeper performance insights, and structured plans designed for serious improvement. Who it’s for - Students and professionals who want measurable boosts in focus and mental throughput. - Adults looking to keep their memory sharp with short daily practice. - High-performers and curious minds who treat cognitive fitness seriously. Start a practice streak today. Train at the edge of your capacity, measure real results, and make cognitive fitness part of your routine. Privacy Policy: https://greenbisonstudio.web.app/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

A-Level Computer Science Revision helps you master Theory and Algorithms with original multiple-choice questions, timed mocks, algorithm-tracing drills, and clear explanations — built for focused daily study. WHY STUDENTS USE IT • 2,000+ original questions across data structures, algorithms & complexity, computational thinking, programming paradigms, computer architecture, networks, databases, Boolean algebra and theory of computation • Theory mode and Algorithms mode — switch anytime • Timed mock papers (40 questions, 50 minutes) with topic breakdown • Quick practice, practice by topic, algorithm-tracing drills, weak-area review • Review incorrect answers and bookmarks • Flashcards with spaced repetition • Progress dashboard: readiness %, topic mastery, mock trend, streak, exam countdown • Fully offline after download — no account required BUILT FOR REAL REVISION Practise the skills A-Level papers reward: tracing pseudocode, comparing Big-O, simplifying Boolean expressions, modelling networks and databases, and explaining architecture trade-offs. Every question includes a detailed rationale so mistakes become learning. SUBSCRIPTION & LIFETIME Full access requires purchase. Privacy Policy: https://joykhansayan1.github.io/alevel-computer-science-revision/privacy.html Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ DISCLAIMER Independent study aid. Not affiliated with, endorsed by, or connected to AQA, OCR, Pearson Edexcel, WJEC, CCEA, or any exam board. Original practice content only — does not reproduce official past papers. Does not guarantee any grade. © 2026 MD Shahariar Nazim Joy