Comparison

Keep your reflexes vs Reflex

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

Reflex

Test your reflexes with 8 unique games designed to measure speed, precision, and hand-eye coordination. Track your progress with saved best times and high scores in a clean, distraction-free interface. No accounts are needed to start playing.

Highlights
  • 8 unique reaction games
  • FPS aim trainer
  • Color and emoji matching
  • Timing and precision tests
  • Progress tracking
  • Distraction-free design
  • No account required
Features
Read full description

How fast are you, really? Reflex measures your reaction time with 8 unique games designed to test speed, precision, and hand-eye coordination. STREET LIGHT Inspired by F1 race starts. Watch the lights count down, then tap the instant they go out. Your reaction time is measured to the millisecond. SQUARE CHASE A 5x5 grid lights up one tile at a time. Tap 10 colored squares as fast as you can. Every millisecond counts. AIM TRAINER A full 3D first-person target range. Drag to aim, tap to shoot, and rack up points before time runs out. Adjustable sensitivity and customizable crosshair colors. COLOR CHOOSER A color swatch appears — tap the matching shade exactly. Tests visual discrimination and rapid color recognition. COLOR MATCH The word says one color, but the ink is another. Tap the ink color, not the word. A classic test of cognitive speed under pressure. EMOJI MATCH A grid of emoji — find and tap the matching pair before the clock runs out. Simple premise, surprisingly demanding. SLIDERS Three sliders move at different speeds. Tap each one when it hits the target zone. Tests timing precision and multi-tasking. TIME STOP A timer counts up — tap to freeze it exactly on target. Pure precision. Zero margin for error. TRACK YOUR PROGRESS Best times and high scores are saved locally. See your personal bests right from the main menu and push yourself to beat them. Clean, distraction-free design. No accounts required. Just open and play.

Screenshots

Keep your reflexes2 screens
Reflex4 screens

Verdict

The call

The clearest difference is ads: Reflex at none against Keep your reflexes's shown. Keep your reflexes's advantage is update cadence (every 2 days vs every 6 days) and iOS requirement (15.6 vs 17.0). 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

Keep your reflexes ships an update every 2 days, Reflex every 6 days. The most recent releases landed on September 20, 2026 and September 10, 2026 respectively.

Scorecard3 real differences · 6 level
Keep your reflexes versus Reflex: the parameters behind the verdict, then further details
ParameterKeep your reflexesReflex
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 2 days — betterEvery 6 days
AdsYesNo — better
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better17.0
Further details — not scored
Size5 MB5 MB
Age rating4+4+
DeveloperMasaharu TsukamotoAPPIKO LTD

In-app purchases

None

Keep your reflexes

No in-app purchases

None

Reflex

No in-app purchases

Questions

Is Keep your reflexes free?
Keep your reflexes is free to download, with no in-app purchases.
Is Reflex free?
Reflex is free to download, with no in-app purchases.
Do Keep your reflexes or Reflex have ads?
Keep your reflexes shows ads; Reflex does not.
Which is updated more often, Keep your reflexes or Reflex?
Keep your reflexes ships an update every 2 days, and Reflex every 6 days. Most recently, Keep your reflexes was updated on September 20, 2026 and Reflex on September 10, 2026.

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