Comparison

Reaction Test Pro vs Stop the Box!!

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

Reaction Test Pro

Test your reflexes with precision down to the microsecond. Engage in a variety of fun mini-games designed to challenge your speed and skill. Compete with friends and players globally on leaderboards.

Highlights
  • Microsecond reaction time measurement
  • Multiple mini-games
  • Global leaderboards
  • Challenge friends
  • Skill-based challenges
Features
Read full description

Welcome to the Top Reaction Test App on the App Store! Measure your reaction times to the microsecond and compete with your friends and others around the world in a series of exciting mini-games designed to push your skill to the edge. Games include: - Race Lights-Out - Whack-a-dot - Colour change - Ruler drop Game Center allows you to challenge friends and take your place on global leaderboards - giving you that ultimate flex.

About

Stop the Box!!

A challenging game designed to test your focus and reflexes. It offers simple gameplay that is difficult to master, providing an engaging experience for players seeking a mental workout.

Highlights
  • Focus testing
  • Reflex challenges
  • Easy to learn gameplay
  • Difficult to master
  • Engaging experience
Read full description

Test your focus and reflexes in Stop The Box! Easy to play. Impossible to master. ► Download and play now!

Screenshots

Reaction Test Pro4 screens
Stop the Box!!4 screens

Verdict

The call

The clearest difference is review sentiment: Stop the Box!! at 100% against Reaction Test Pro's 53%. Stop the Box!! also leads on rating (4.9 vs 4.3) and update cadence (every 5 weeks vs every 9 months). Reaction Test Pro's advantage is in-app purchases (none vs 1) and 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Stop the Box!! sells 1 one-off in-app purchase. Reaction Test Pro asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Stop the Box!! holds the better App Store score, 4.9 against 4.3. That said, the two scores are not equally well evidenced: Reaction Test Pro has 196 ratings behind it against 14, so its average is the more settled of the two. Written reviews point the same way: 53% of Reaction Test Pro's written reviews are positive against 100% of Stop the Box!!'s.

UpkeepUpdate frequency

Reaction Test Pro ships an update every 9 months, Stop the Box!! every 5 weeks. The most recent releases landed on September 21, 2026 and June 1, 2026 respectively.

Scorecard7 real differences · 3 level
Reaction Test Pro versus Stop the Box!!: the parameters behind the verdict, then further details
ParameterReaction Test ProStop the Box!!
PriceFreeFree
Rating4.3 (196 ratings)4.9 (14 ratings) — better
Positive reviews53.2% of reviews100.0% of reviews — better
Number of ratings196 — better14
Update frequencyEvery 9 monthsEvery 5 weeks — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size7 MB29 MB
Age rating4+4+
DeveloperFreedom AppsKevin Galarza

Customer experience

Reaction Test Pro

All ratings196 ratings
Positive81.6%
Neutral6.1%
Negative12.2%
Written reviews62 reviews
Positive53.2%
Neutral8.1%
Negative38.7%

Stop the Box!!

All ratings14 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Reaction Test Pro

No in-app purchases

1 purchases

Stop the Box!!

One-time1
  • Remove Ads$2.99

Questions

Is Reaction Test Pro free?
Reaction Test Pro is free to download, with no in-app purchases.
Is Stop the Box!! free?
Stop the Box!! is free to download, with in-app purchases available.
Which has better reviews, Reaction Test Pro or Stop the Box!!?
Stop the Box!! is rated higher. Reaction Test Pro averages 4.3 out of 5 from 196 ratings, while Stop the Box!! averages 4.9 from 14 ratings.
Do Reaction Test Pro or Stop the Box!! have ads?
Stop the Box!! shows ads; Reaction Test Pro does not.
Which is updated more often, Reaction Test Pro or Stop the Box!!?
Reaction Test Pro ships an update every 9 months, and Stop the Box!! every 5 weeks. Most recently, Reaction Test Pro was updated on September 21, 2026 and Stop the Box!! on June 1, 2026.

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