Comparison

Keep your reflexes vs Numsprint

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

Head to head
About

Keep your reflexes

Features
Read full description

FlashFive is a fun training game that helps you boost your focus and improve your reaction speed! Five circles appear on the screen, and your goal is to tap the one that lights up within the time limit. The time gets shorter little by little, but don’t rush—take your time and enjoy the challenge. Your score is based on how many circles you tap correctly. Play at your own pace and steadily train your concentration while having fun. Try playing a little every day to refresh your mind and body!

About

Numsprint

Features
Read full description

Numsprint is a fast, addictive number-tapping brain game. Just tap the numbers in ascending order—1, 2, 3…—as quickly as you can. Simple to learn, hard to master! Race against the clock, beat your best time, and train your reaction speed, focus, and peripheral vision in just a few minutes a day. ■ 5 Difficulty Levels - Easy: 3×3 (1–9) - Normal: 4×4 (1–16) - Hard: 5×5 (1–25) - Expert: 4×4 with 16 random numbers from 1–30 - Master: 5×5 with 25 random numbers from 1–50 ■ Features - Best time records for every difficulty - 20 achievements to unlock - Daily reminder to build your habit - Clean, bright, relaxing design - One-handed, quick play—perfect for a short break - No account required Great for brain training, boosting concentration, and challenging friends for the fastest time. Download Numsprint and see how fast your brain really is!

Screenshots

Keep your reflexes2 screens
Numsprint4 screens

Verdict

The call

The clearest difference is update cadence: Keep your reflexes at every 2 days against Numsprint's weekly. Keep your reflexes also leads on iOS requirement (15.6 vs 26.2). On price, ads, 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

Keep your reflexes ships an update every 2 days, Numsprint weekly. Both last shipped on September 26, 2026.

Scorecard2 real differences · 4 level
Keep your reflexes versus Numsprint: the parameters behind the verdict, then further details
ParameterKeep your reflexesNumsprint
PriceFreeFree
Update frequencyEvery 2 days — betterWeekly
AdsYesYes
In-app purchasesNoNo
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better26.2
Further details — not scored
Size5 MB4 MB
Age rating4+4+
DeveloperMasaharu Tsukamotoryuya matsuo

In-app purchases

None

Keep your reflexes

No in-app purchases

None

Numsprint

No in-app purchases

Questions

Is Keep your reflexes free?
Keep your reflexes is free to download, with no in-app purchases.
Is Numsprint free?
Numsprint is free to download, with no in-app purchases.
Do Keep your reflexes or Numsprint have ads?
Both Keep your reflexes and Numsprint show ads.
Which is updated more often, Keep your reflexes or Numsprint?
Keep your reflexes ships an update every 2 days, and Numsprint weekly. Most recently, Keep your reflexes was updated on September 26, 2026 and Numsprint on September 26, 2026.

Other comparisons