Comparison

HighSpeed! Numbers vs Reaction Time Test

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

Head to head
About

HighSpeed! Numbers

A quick-paced brain training game where players tap numbers in ascending order within a time limit. It enhances cognitive skills like dynamic and peripheral vision. Ideal for short bursts of play anytime.

Highlights
  • Tap numbers in order
  • Timed gameplay
  • Combination scoring
  • Decimal and hexadecimal modes
  • Dynamic vision training
  • Peripheral vision training
Features
Read full description

"HighSpeed! Numbers" is an easy brain training game played by simply touching the given numbers in order. However, the numbers move randomly, so it takes skill to touch them. Try to touch as many numbers as possible within the one- minute time limit. Touching the numbers faster will form combinations, which results in a higher score. If the decimal mode is too easy for you, try the hexadecimal mode. [ Benefits ] ・Prevents forgetfulness ・Dynamic vision training ・Peripheral vision training [ Recommended usage time ] ・Play the game any time you have one free minute. [Summary] This brain training game consists of chasing prompted numbers by touch. ###===----- How to Play -----===### (1)The score is displayed in the upper right hand corner of the screen. Choose numbers one digit at a time from the field, and touch them. (2)If you don't touch the numbers within the time allowed, the score will decrease. (3)If you can touch all of the numbers, the score will increase accordingly, so touch them again. (4)If the numbers are touched quickly enough, a combination will result, and the score will increase greatly as the combination grows. For example, when the score would normally increase by +1, it will now double, quadruple, octuple, etc. (5)Try to increase your score as much as possible by touching the numbers one after another within the total time allotted.

About

Reaction Time Test

Test and train your reflexes with this app. Simply tap the screen when a red square appears to measure your reaction speed and improve your concentration. Daily practice can enhance your reflexes, making it ideal for gamers.

Highlights
  • Reaction speed testing
  • Reflex training
  • Concentration improvement
  • Rank display
  • Daily practice recommended
Features
Read full description

An app for reaction speed, reflex testing and training Touch the screen when a red square appears Displays rank according to reaction speed Practicing every day may also be a training of reflexes It can also be used as a training for concentration. Recommended for those who are playing games such as FPS

Screenshots

HighSpeed! Numbers4 screens
Reaction Time Test3 screens

Verdict

The call

The clearest difference is ads: HighSpeed! Numbers at none against Reaction Time Test's shown. HighSpeed! Numbers also leads on monetization model (free vs ad-supported) and iOS requirement (9.1 vs 15.6). Reaction Time Test's advantage is update cadence (every 3 months vs every 11 months). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

HighSpeed! Numbers ships an update every 11 months, Reaction Time Test every 3 months. The most recent releases landed on June 25, 2026 and August 25, 2026 respectively.

Scorecard4 real differences · 6 level
HighSpeed! Numbers versus Reaction Time Test: the parameters behind the verdict, then further details
ParameterHighSpeed! NumbersReaction Time Test
PriceFreeFree
Rating5.0 (1 ratings) — better
Positive reviews50.0% of reviews
Number of ratings1 — better
Update frequencyEvery 11 monthsEvery 3 months — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree — betterAd-supported
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.1 — better15.6
Further details — not scored
Size156 MB13 MB
Age rating4+4+
DeveloperTakemi MatsumotoRyouhei Azuma

Customer experience

HighSpeed! Numbers

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Reaction Time Test

Written reviews2 reviews
Positive50.0%
Neutral50.0%
Negative0.0%

In-app purchases

None

HighSpeed! Numbers

No in-app purchases

None

Reaction Time Test

No in-app purchases

Questions

Is HighSpeed! Numbers free?
HighSpeed! Numbers is free to download, with no in-app purchases.
Is Reaction Time Test free?
Reaction Time Test is free to download, with no in-app purchases.
Do HighSpeed! Numbers or Reaction Time Test have ads?
Reaction Time Test shows ads; HighSpeed! Numbers does not.
Which is updated more often, HighSpeed! Numbers or Reaction Time Test?
HighSpeed! Numbers ships an update every 11 months, and Reaction Time Test every 3 months. Most recently, HighSpeed! Numbers was updated on June 25, 2026 and Reaction Time Test on August 25, 2026.

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