Brook ARFlash vs Reaction Time Test
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Brook ARFlash
Control virtual character movement routes with ease. Explore environments more freely and flexibly with this dedicated mobile application. Enhance your virtual exploration experience.
- Control virtual character movement routes
- Flexible exploration experience
- Dedicated mobile application
- Enhance virtual exploration
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Brook ARmate App is a dedicated mobile application designed exclusively for Brook ARmate, allowing you to easily control the movement routes of virtual characters and enjoy a more free and flexible exploration experience. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Reaction Time Test
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How fast are you, actually? Reaction Time measures the gap between seeing something change and moving your finger — and it measures it correctly. Most reaction apps stop the clock when your finger lifts off the glass. That adds your own release time to every single result, which is why their numbers run slow. This one stops the moment your finger lands. FOUR WAYS TO MEASURE • Simple — the screen turns green, you tap. Raw reaction, nothing else. • Choice — one of four panels lights up. Tap that one. • Go / No-Go — green means tap, red means hold still. Speed plus restraint. • Timing — a bar sweeps toward a line. Tap exactly when it arrives. STATISTICS, NOT JUST A HIGH SCORE Five valid attempts per session. You get the median (the number worth trusting), your best, your mean, and your spread — how consistent you were. Attempts under 100 ms are marked as false starts and attempts over 3 seconds as misses. Both are shown to you and both are left out of the maths, with the reason on screen. WHAT IT DOES NOT DO • No account. Nothing to sign up for. • No paywall and no subscription. Every test is free. • No data collected. Your sessions never leave this iPhone. • Works completely offline, including in airplane mode. Tiers are our own scale, not a population percentile. This app is for measurement and entertainment, not medical or cognitive assessment.
Screenshots
Verdict
The clearest difference is in-app purchases: Reaction Time Test at none against Brook ARFlash's 2. On price, update cadence, ads 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. Brook ARFlash sells 2 in-app purchases, starting at $0.99 per month. Reaction Time Test asks for nothing beyond the download.
Brook ARFlash ships an update every 2 weeks, Reaction Time Test every 8 days. The most recent releases landed on October 9, 2026 and October 4, 2026 respectively.
| Parameter | Brook ARFlash | Reaction Time Test |
|---|---|---|
| Price | Free | Free |
| Rating | 2.6 (19 ratings) — better | — |
| Positive reviews | 23.1% of reviews | — |
| Number of ratings | 19 — better | — |
| Update frequency | Every 2 weeks | Every 8 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.2 — better | 17.0 |
| Further details — not scored | ||
| Size | 35 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Zeroplus Technology Co, Ltd. | Jinwan Kim |
In-app purchases
Brook ARFlash
- 進階功能-月度方案1 Month trial$0.991 Month
- 進階功能-年度方案1 Month trial$9.991 Year
Reaction Time Test
No in-app purchases
Questions
Is Brook ARFlash free?
Is Reaction Time Test free?
Do Brook ARFlash or Reaction Time Test have ads?
Which is updated more often, Brook ARFlash or Reaction Time Test?
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