Dual N-Back: Brain Training
Dual N-Back: Brain Training Summary
Dual N-Back: Brain Training is a mobile Android app in Productivity by Dual N-Back, LLC. Released in Mar 2026 (2 months ago). It has about 280+ installs Based on AppGoblin estimates, it reaches roughly 102 monthly active users . Store metadata: updated May 8, 2026.
Recent activity: 71 installs this week (188 over 4 weeks) showing above average growth View trends →
Store info: Last updated on Google Play on May 8, 2026 .
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App Description
Working memory training built on the Jaeggi n-back protocol. Dual, triple, quad.
Working memory is the mental workspace behind focus, reasoning, and learning. Dual N-Back is a focused trainer built around the n-back protocol from Jaeggi et al. (2008, PNAS) — now with Classic, Adaptive, Triple, and Quad training modes.
Track visual positions and audio letters simultaneously. When the current stimulus matches what appeared N steps back, respond. Simple to learn, challenging to master.
CLASSIC MODE — FREE, UNLIMITED
Implements the protocol described in the peer-reviewed research. Integer N-back levels (N=2, N=3, N=4…), fixed difficulty, and unlimited daily sessions. No paywall.
ADAPTIVE MODE
Our N.DD system delivers fine-grained difficulty progression through micro levels like 2.45 or 3.78. Seven parameters adjust together (pace, timing, lures, and more) to keep each session in your optimal challenge zone.
TRIPLE AND QUAD N-BACK
Add a third or fourth modality (color, shape) alongside position and audio for the harder variants serious practitioners seek.
D'-PRIME MEASUREMENT
Track performance with the sensitivity index used in cognitive research. Raw accuracy is misleading — 90% could mean excellent play or lucky guessing. D'-prime separates real signal from noise.
WORKING MEMORY ASSESSMENT
Monthly Counting Span Tests measure your working memory capacity independent of n-back skill. The same validated methodology used in research labs, built right into the app.
SESSION REPLAY
Step through the full trial sequence of any session to see exactly where errors occurred and review your approach.
SESSION NOTES
Tag any session with a quick note ("tired today", "first session after coffee") to self-experiment with what affects your sessions.
FREE PLAN
Classic mode with unlimited sessions, cohort programs, session replay, and manual N-back control. No credit card required.
PRO — $4.99/month or $39.99/year
Unlocks Adaptive mode with the full N.DD micro-difficulty system, monthly Counting Span assessments, and detailed analytics.
SUBSCRIPTION DETAILS
Pro subscriptions auto-renew monthly or yearly at the prices above unless cancelled. Cancel anytime from Google Play → Subscriptions. Full Terms and Privacy Policy available in-app.
Train 20 minutes a day. Watch your n-back level climb. Know it's real.