Cortex vs Cubilo
Price, ratings, monetisation and update history for both apps, side by side â with what reviewers say about each.
Cortex
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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. Try everything free for 3 days, then unlock it all 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 3-DAY FREE TRIAL, THEN PAY ONCE Every game is unlocked free for 3 days. Keep them all forever with a single one-time purchase. No weekly trials, no renewing subscription, no surprise 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.
Cubilo
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Build mathematical spatial sense through hands-on practice. Cubilo offers expanding training in shape composition, mental rotation, 3D visualization, spatial memory, logic, and planning. Learners drag, rotate, flip, combine, observe, remember, reason, and construct. Clear introductions explain each objective and learning value. My provides records, six-skill analysis, and family guidance. The first 3 tasks in each activity are free. One purchase permanently unlocks training and free practice. Apple Standard EULA:https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is update cadence: Cubilo at every 3 days against Cortex's every 11 days. Cubilo also leads on device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Cortex sells 1 one-off in-app purchase and Cubilo sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Cortex ships an update every 11 days, Cubilo every 3 days. The most recent releases landed on October 5, 2026 and September 29, 2026 respectively.
| Parameter | Cortex | Cubilo |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 11 days | Every 3 days â better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone | iPhone, iPad, iPod â better |
| Requires iOS | 16.4 | 15.0 â better |
| Further details â not scored | ||
| Size | 46 MB | 218 MB |
| Age rating | 4+ | 4+ |
| Developer | Stephane de Barbanson | ć»șè¶ ćŽ |
In-app purchases
Cortex
- Unlock all games$3.99
Cubilo
- Unlock All Training$3.99









