ColorBrain vs Inkstroop
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
ColorBrain
Train your attention and reaction time with quick daily exercises. This app offers four classic cognitive tests that adapt to your skill level, providing insights into your focus and speed. Build a consistent habit with streaks and reminders.
- Four attention training modes
- Adaptive difficulty
- Daily challenges
- Reaction time tracking
- Distraction cost insights
- Daily streaks and reminders
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Two minutes a day for sharper attention and faster reactions. ColorBrain turns four classic attention tests into quick daily training. Every session adapts to you, and every result shows you something about how your attention works. FOUR WAYS TO TRAIN ▸ Color — the Stroop test. "GREEN" printed in red? Tap red. Your brain wants to read the word; you train it to look at the ink. ▸ Direction — follow the arrow while the word under it and the arrows around it point the other way. ▸ Impulse — a go/no-go test: tap on green, hold back on everything else. ▸ Numbers — a Schulte table: find the numbers in order as fast as you can. DAILY CHALLENGE One 60-second challenge a day, the same for every player. See where you place among today's players on the Game Center leaderboard. SEE HOW YOUR ATTENTION WORKS After every session: accuracy, reaction time and your distraction cost — how much slower you answer when what you read conflicts with what you see. Watch it shrink as you practice. ADAPTS TO YOU Difficulty rises when you are accurate and eases off when you struggle, so every session stays challenging but doable. BUILD THE HABIT A daily streak, a home-screen widget and a reminder at the time you choose. PREMIUM • All four modes, including Numbers • Unlimited training every day • Your full history and trends • Distraction cost and self-control insights for every mode • Streak freeze: miss a day without losing your streak Free: 3 sessions a day, the Daily Challenge and your last 7 days of stats. No ads. ColorBrain is a training game, not a medical or diagnostic tool. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://nikibstudio.site/apps/colorbrain/privacy
Inkstroop
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Hue Rush is a neon reflex puzzle built around one cruel, beautiful trick: the word lies, the color tells the truth. Read the ink, not the word. Tap fast. Chain combos. Survive sixty seconds. Every prompt flashes a color word painted in a different shade. Find the tile whose FILL matches the INK COLOR of the word—not whatever the word says. Sounds easy. Feels easy. Then your brain trips, your thumb hesitates, and a hot streak turns into a wipeout. WHY YOU'LL KEEP RESTARTING • 60-second adrenaline rounds—one more try, always • Speed-tap scoring: faster answers stack bigger points • Combo system that builds into Neon Pulse (x1.5 score for 5 seconds) • Mistakes hurt: wrong tap drops your combo and shaves time • Expanding palette—pass 200 points and four new colors join the deck DESIGNED FOR FOCUS • Pure one-thumb play, portrait, no clutter • Synesthetic neon aesthetic with deep magenta-to-cyan gradients • Subtle haptics and crisp audio on every tap • Smooth 120Hz animations that never get in your way PERFECT FOR • Stroop-effect fans and reaction junkies • Commute breaks, queue waits, between matches • Anyone who likes their brain a little bit roasted • Score-chasers grinding for that personal best NO PAYWALLS, NO TIMERS Hue Rush is free to play, end to end. Optional Remove Ads is a one-time tip if you love the game. Train your eyes. Beat your brain. Read the color, not the word.
Screenshots
Verdict
The clearest difference is in-app purchases: Inkstroop at none against ColorBrain's 2. Inkstroop also leads on update cadence (every 3 days vs every 4 months). ColorBrain's advantage is ads (none vs shown). On price, device support 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. ColorBrain sells 2 in-app purchases, starting at $3.99 per month. Inkstroop asks for nothing beyond the download.
ColorBrain ships an update every 4 months, Inkstroop every 3 days. The most recent releases landed on October 15, 2026 and September 24, 2026 respectively.
| Parameter | ColorBrain | Inkstroop |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Every 4 months | Every 3 days — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 2 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Bogdan Nikishin | BIN WANG |
In-app purchases
ColorBrain
- Premium Monthly7 Days trial$3.991 Month
- Annual Plan (Best Value)7 Days trial$29.991 Year
Inkstroop
No in-app purchases








