Concentrate! vs Reaction Time Test
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Concentrate!
Test and improve your focus and reaction time with a color-matching game. The objective is to correctly identify if the displayed color word matches its font color, aiming for speed and accuracy.
- Color word-font color matching
- Tests concentration
- Measures reaction speed
- Game Center Leaderboards
- Single-player mode
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Improve your concentration and reaction speed with this simple but effective exercise. Concentrate! offers your brain a real workout by forcing it to resist its impulses. HOW TO PLAY: The name of a color is displayed on the screen. Focus and decide if the name matches the font color. For example, if the word “BLACK” is displayed with YELLOW letters, select “WRONG”. But if the word “BLUE” shows up in a BLUE color, be sure to mark it “RIGHT”. To complete the test, answer 100 questions with no mistakes, as fast as you can. The recorded time is a measure of your concentration skill and reaction speed. See where you stand by comparing your result with the ones on the Game Center Leaderboards. Don’t forget: PRACTICE MAKES PERFECT!
Reaction Time Test
Measure your reflexes by tapping as quickly as possible when a visual cue appears. Compete against yourself and challenge your personal best.
- Reaction time measurement
- Tap when green cue appears
- Challenge personal limits
- Simple gameplay
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Test your reaction time, how fast can you tap when turning green? Challenge your limits!
Screenshots
Verdict
Concentrate! and Reaction Time Test both sit at 4.4 stars, but that hides the real split: 83% of Concentrate!'s written reviews are positive against 33% of Reaction Time Test's. Concentrate! also leads on ads (none vs shown) and monetization model (free vs ad-supported). Reaction Time Test's advantage is update cadence (every 4 days vs every 3 months) and ratings volume (73 vs 5). On price, rating, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.4 for Concentrate! against 4.5 for Reaction Time Test. That said, the two scores are not equally well evidenced: Reaction Time Test has 73 ratings behind it against 5, so its average is the more settled of the two. Written reviews are what separate them: 83% of Concentrate!'s written reviews are positive against 33% of Reaction Time Test's.
Concentrate! ships an update every 3 months, Reaction Time Test every 4 days. The most recent releases landed on October 4, 2026 and October 24, 2026 respectively.
| Parameter | Concentrate! | Reaction Time Test |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (5 ratings) | 4.5 (73 ratings) — better |
| Positive reviews | 83.3% of reviews — better | 33.3% of reviews |
| Number of ratings | 5 | 73 — better |
| Update frequency | Every 3 months | Every 4 days — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 8.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 9 MB | 30 MB |
| Age rating | 4+ | 4+ |
| Developer | norbert nagy | HUNG-PIN YU |
Customer experience
Concentrate!
Reaction Time Test
In-app purchases
Concentrate!
No in-app purchases
Reaction Time Test
No in-app purchases
Questions
Is Concentrate! free?
Is Reaction Time Test free?
Which has better reviews, Concentrate! or Reaction Time Test?
Do Concentrate! or Reaction Time Test have ads?
Which is updated more often, Concentrate! or Reaction Time Test?
Other comparisons
