Parallax: Dual N-Back

Two signals. One focused practice. Parallax is a premium dual n-back app for people who want a deliberate daily practice and a detailed record of their performance. Watch a position, listen to a letter, and respond when either matches exactly N steps earlier. A COMPLETE PRACTICE, ONE PURCHASE Get every feature with a single purchase. No subscriptions, ads, accounts or in-app purchases. SEE YOUR N-LEVEL PROGRESS Follow the levels you practice across weeks, months and years. View daily, weekly or monthly averages and ranges, and see when you first completed each level and how much practice led up to that milestone. A practiced level is not a claim of mastery. GO DEEPER THAN A SCORE Explore position and sound accuracy separately, hits, misses, false alarms, sensitivity and correct-response timing. Compare sessions with date, level and cadence filters. Inspect a spatial performance map and…