# Cortex Brain Trainer: N-Back — Stroop, Schulte, Reaction Test

> Stroop, Schulte, Reaction Test (iPhone/iPad app by Stephane de Barbanson.)

- Source: https://appshunter.io/ios/app/cortex-brain-trainer-n-back/id6775019270 (this page in markdown: same URL + `.md`)
- Developer: [Stephane de Barbanson](https://appshunter.io/developer/1876500326)
- Category: Education, Games, Puzzle
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 16.4 · 46 MB
- Languages: American English, Dutch, French (France), German (Germany), Italian, Norwegian Bokmål, European Portuguese, European Spanish, Swedish
- Released: 2026-06-04
- Data updated: 2026-10-22

## What is Cortex Brain Trainer?

Cortex is an offline brain-training app: dual N-Back, a Stroop test, Schulte tables, a reaction time test and an RSVP speed reader, plus Sudoku, Nonogram and Word Search puzzles. No account, no internet, no tracking: nothing leaves your phone.
Also known as: n-back memory test, Stroop effect test, Schulte grid, reflex test, speed reading trainer.

Seventeen focused brain games and classic puzzles, plus Peak Hours: a personal cognitive instrument you won't find in other brain trainers. Four games are free forever; unlock all seventeen plus Peak Hours with a single purchase. No subscription, no ads, no accounts, and nothing leaves your device.

PEAK HOURS
A quick reaction check you can take any time of day. Over time it charts when your mind is sharpest and reveals whether you're a morning lark, a night owl, or steady all day. Fully private, stored only on your phone.

THE GAMES
Memory, focus, reading, timing and spatial skills, each built around a real task:
- N-Back, Sequence Memory and Remember-To for memory
- Stroop, Track and Peripheral Vision for attention
- Schulte Table and Speed Reader for visual scanning and reading
- Mental Rotation for spatial reasoning
- Inner Clock for your sense of time
- Number Sequences for pattern reasoning

SKILL DRILLS
- Mental Math: learn a real trick, then drill it
- Speed Math and Estimation for arithmetic fluency and number sense

CLASSIC PUZZLES
- Nonogram: solve the number clues to reveal a hidden picture
- Sudoku and Word Search, as pure puzzles

FREE TO START, UNLOCK ONCE
Four games are free forever: N-Back, Stroop, Schulte Table and Speed Math. Unlock all seventeen games plus Peak Hours with a single one-time purchase. No subscription, no ads, no renewing charges.

PRIVATE BY DESIGN
No accounts, no analytics, no advertising, no third-party trackers. The app works fully offline and your stats stay on your phone. Privacy here isn't a setting you switch on; it's how the app is built.

BUILT FOR FOCUS
A precision design made for concentration, not a candy-coloured slot machine. Make it yours with multiple themes, light or dark, and a custom accent colour. Track your personal bests at your own pace.

Now fully available in nine languages.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Unlock all games | $3.99 | one-time |


## Is Cortex Brain Trainer safe?

Not enough ratings yet to assess Cortex Brain Trainer.

## Is Cortex Brain Trainer legit?

Cortex Brain Trainer: N-Back appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Cortex Brain Trainer is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 5 releases)

### 2.0.11 — 2026-10-21

Small fixes and polish.

### 2.0.10 — 2026-10-17

Four games are now free for good: N-Back, Stroop, Schulte Table and Speed Math. Unlock every game and Peak Hours with one purchase. No subscription.

### 2.0.8 — 2026-10-11

Small fixes and polish.

### 2.0.7 — 2026-10-03

The App Store now shows every language Cortex speaks: English, Dutch, German, French, Spanish, Italian, Portuguese, Swedish and Norwegian. Plus small fixes and polish.

### 2.0.6 — 2026-09-26

New in Settings: discover more apps from Studio Barbanson, and rate Cortex in one tap. Small fixes and polish.

## Apps similar to Cortex Brain Trainer

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [MemoryLoop](https://appshunter.io/ios/app/memoryloop/id6757319403) | — | Free | Education |
| [Cognilo: Brain Training Games](https://appshunter.io/ios/app/cognilo-brain-training-games/id6808798253) | — | Free | Education |
| [Cubilo: Spatial Thinking](https://appshunter.io/ios/app/cubilo-spatial-thinking/id6792619988) | — | Free | Education |
| [N-Back — Dual N-Back Training](https://appshunter.io/ios/app/n-back-dual-n-back-training/id6792875395) | — | Free | Education |
| [NeuroSpace: Brain Training](https://appshunter.io/ios/app/neurospace-brain-training/id6797205292) | — | Free | Education |
| [CodeCrafters Pro](https://appshunter.io/ios/app/codecrafters-pro/id6738865215) | — | Free | Education |

## More apps by Stephane de Barbanson

- [Calmly Student: Exam Planner](https://appshunter.io/ios/app/calmly-student-exam-planner/id6759039617)
- [Plump: Oh Hell Card Game](https://appshunter.io/ios/app/plump-oh-hell-card-game/id6759072535)
- [BI Data Hero: PL-300 Exam Prep](https://appshunter.io/ios/app/bi-data-hero-pl-300-exam-prep/id6762004619)
- [Daypages - Calm Calendar](https://appshunter.io/ios/app/daypages-calm-calendar/id6775595996)
- [My Football Story](https://appshunter.io/ios/app/my-football-story/id6777795399)

All apps by Stephane de Barbanson: https://appshunter.io/developer/1876500326

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*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 2026-10-22.*