Parallax: Dual N-Back
Memory practice. Deep stats.
Only for iPhone
$4.99
iPhone
Make dual n-back a daily practice. Track your N-level over months and years, explore detailed stats, and build a streak. One purchase. No ads. No subscription.
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 a trial-by-trial ledger.
BUILD A DAILY RHYTHM
Use optional energy and focus check-ins, separate check-in and training streaks, an activity calendar and local practice reminders. Miss a day without losing your history.
MAKE IT YOUR PRACTICE
Start with a guided introduction. Choose your N level and pace, check your sound, and pick from three voice treatments with optional haptics.
KEEP YOUR RECORD
Your training history stays on your device unless you choose to export it. Back up and import JSON records, export raw CSV for analysis, or share a block result without your private check-in ratings and notes. Device backups follow your Apple settings.
Parallax measures performance on this task. Research on benefits beyond trained n-back performance is mixed. It does not measure IQ, diagnose a condition or provide medical advice.
The developer, CST3 Media, LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- CST3 Media, LLC
- Size
- 1.8 MB
- Category
- Education
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 CST3 Media, LLC
