Genius Square vs Simple Reaction Timer
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Genius Square
This logic puzzle game challenges players to strategically place colorful blocks within a 6x6 grid, avoiding black squares. Compete against the clock to achieve faster times and improve your personal best scores.
- 6x6 grid puzzle
- Block placement challenges
- Avoid black squares
- Beat the clock
- Personal best tracking
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To complete the puzzle you simply have to place all the blocks in the 6x6 square, and you can't use the black squares. Beat the clock, and your personal best times!
Simple Reaction Timer
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How fast are your reactions? Reaction Timer Free puts your reflexes to the test. Watch the start lights… when they go out, tap immediately. Chase a new personal best, share times with friends, and tweak the light colours to your style. Why you’ll love it • True reaction test — lights count down, then it’s all you. • Fastest time tracker — your best is saved on device. • “New Fastest Time” banner when you beat your PB. • Share in one tap — WhatsApp, Messenger, and more. • Custom colours — pick any light colour you like. • Simple & clean — built for quick plays.
Screenshots
Verdict
The clearest difference is ads: Genius Square at none against Simple Reaction Timer's shown. Genius Square also leads on iOS requirement (14.7 vs 17.6). Simple Reaction Timer's advantage is update cadence (daily vs every 2 days). On price, 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.
Genius Square ships an update every 2 days, Simple Reaction Timer daily. The most recent releases landed on June 5, 2026 and September 8, 2026 respectively.
| Parameter | Genius Square | Simple Reaction Timer |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (6 ratings) — better | — |
| Positive reviews | 14.3% of reviews | — |
| Number of ratings | 6 — better | — |
| Update frequency | Every 2 days | Daily — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 14.7 — better | 17.6 |
| Further details — not scored | ||
| Size | 9 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Alex Goulder | ANDREW MARTYN BANNER |
In-app purchases
Genius Square
No in-app purchases
Simple Reaction Timer
No in-app purchases
Questions
Is Genius Square free?
Is Simple Reaction Timer free?
Do Genius Square or Simple Reaction Timer have ads?
Which is updated more often, Genius Square or Simple Reaction Timer?
Other comparisons
