# Dual N-Back: Memory Trainer — Boost working IQ, focus, logic

> Boost working IQ, focus, logic (iPhone/iPad app by Konstanty Koszewski.)

- Source: https://appshunter.io/ios/app/dual-n-back-memory-trainer/id6759211886 (this page in markdown: same URL + `.md`)
- Developer: [Konstanty Koszewski](https://appshunter.io/developer/1871696981)
- Category: Education, Health & Fitness
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.6 · 27 MB
- Languages: American English, Arabic, Danish, Dutch, Finnish, French (France), German (Germany), Hebrew, Italian, Japanese and 10 more
- Released: 2026-02-20
- Data updated: 2026-07-09
- User reviews in markdown: https://appshunter.io/ios/app/dual-n-back-memory-trainer/id6759211886/reviews.md

## What is Dual N?

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/

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Dual N-back Yearly Premium | $29.99 | per year |
| Dual N-back Monthly Premium | $3.99 | per month |



## Version history (last 1 release)

### 1.0 — 2026-02-20

No release notes.

## More apps by Konstanty Koszewski

- [Dudoku: Sudoku Brain Training](https://appshunter.io/ios/app/dudoku-sudoku-brain-training/id6758238799)

All apps by Konstanty Koszewski: https://appshunter.io/developer/1871696981

## Related topics

[dual n back training](https://appshunter.io/ios/topics/dual-n-back-training) · [dual and back training](https://appshunter.io/ios/topics/dual-and-back-training)

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-09.*