Comparison

Stroopy vs Reverse Reaction!

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

Head to head
About

Stroopy

Features
Read full description

Stroopy is a challenging puzzle game inspired by the famous Stroop effect from psychology. Test and improve your cognitive flexibility, focus, and reaction time through short, engaging challenges designed to push your brain to its limits. Features: โ€ข Brain-training puzzles based on the Stroop effect โ€ข Improve attention, focus, and reaction speed โ€ข Simple design, challenging gameplay โ€ข Ideal for short daily training sessions Can you stay focused when colors and words donโ€™t match?

About

Reverse Reaction!

Features
Read full description

Your instincts are WRONG. That's the whole game. Opposite Day! flips everything you know about reaction games. The screen says TAP โ€” so you don't. It says DON'T TAP โ€” so you do. Simple to understand, hilariously hard to actually do. HOW IT WORKS โ€ข Read the instruction โ€ข Do the EXACT OPPOSITE โ€ข Do it fast โ€” hesitate and you lose a heart Tap, hold, and swipe your way through levels that get faster, trickier, and sneakier. Just when you think you've rewired your brain, the game flips the rules again. WHY YOU'LL LOVE IT (AND HATE IT) โ€ข One-hand, one-minute rounds โ€” perfect for queues, commutes, and "one more try" spirals โ€ข Levels that escalate from "easy" to "how did I fail THAT" โ€ข 3 hearts per run โ€” every mistake counts โ€ข TODAY'S TRICK โ€” a fresh daily challenge to keep your brain on its toes โ€ข Clean, hand-drawn notebook style with zero clutter TRAIN YOUR BRAIN BY BREAKING IT Opposite Day! isn't just about speed โ€” it's about impulse control. Suppressing your first reaction and doing the reverse is a genuine mental workout. You'll feel your brain fighting you. That's the point. Easy to learn. Impossible to master. Infuriatingly fun. Think backwards. React smarter. Play Opposite Day! Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Stroopy3 screens
Reverse Reaction!4 screens

Verdict

The call

The clearest difference is in-app purchases: Stroopy at none against Reverse Reaction!'s 8. On price, update cadence, ads and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Reverse Reaction! sells 8 one-off in-app purchases. Stroopy asks for nothing beyond the download.

UpkeepUpdate frequency

Stroopy ships an update every 3 months, Reverse Reaction! every 5 months. Both last shipped on October 31, 2026.

Scorecard1 real difference ยท 5 level
Stroopy versus Reverse Reaction!: the parameters behind the verdict, then further details
ParameterStroopyReverse Reaction!
PriceFreeFree
Update frequencyEvery 3 months โ€” betterEvery 5 months
AdsYesYes
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.013.0
Further details โ€” not scored
Size28 MB62 MB
Age rating4+4+
DeveloperOLE WebDesignPercy Ng'uni

In-app purchases

None

Stroopy

No in-app purchases

8 purchases

Reverse Reaction!

One-time8
  • Space Theme$0.99
  • Sketch Theme$0.99
  • Deep Sea Theme$0.99
Show 5 more
  • Retro Theme$0.99
  • Remove Ads Forever$1.99
  • 500 Coins$1.99
  • Remove Ads$3.00
  • 1000 Coins$4.99

Questions

Is Stroopy free?
Stroopy is free to download, with no in-app purchases.
Is Reverse Reaction! free?
Reverse Reaction! is free to download, with in-app purchases available.
Do Stroopy or Reverse Reaction! have ads?
Both Stroopy and Reverse Reaction! show ads.
Which is updated more often, Stroopy or Reverse Reaction!?
Stroopy ships an update every 3 months, and Reverse Reaction! every 5 months. Most recently, Stroopy was updated on October 31, 2026 and Reverse Reaction! on October 31, 2026.

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