Comparison

Reverse Reaction! vs Pickle Machines

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

Head to head
About

Reverse Reaction!

Features
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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/

About

Pickle Machines

Features
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Some machines do one job. Pickle Machines do it the silliest way possible. GOOD FOR BUSY BRAINS Every puzzle rewards a little planning and a lot of what if. It is gentle problem solving that feels like play, not homework. Kids build the logic without noticing. Grown ups get quietly hooked too. Every level gives you a goofy goal, pop the balloon or drop the ball in the bucket, and a box of parts. You build a wild chain reaction to make it happen. Press Run, watch it go, laugh when it flops, tweak it, and win. WHAT YOU BUILD WITH Trampolines, fans, seesaws, conveyor belts, magnets, cannons, portals, dominoes, candles, spinning wheels, ropes, pulleys, scissors, gears, balloons, cartoon bombs, and a cat. Twenty six parts, each with its own trick. HOW IT PLAYS Tap a part to drop it in. Drag it, spin it, flip it. Hit Run and the whole machine springs to life. Edit puts every part back exactly where it was, so kids can experiment with zero fear of breaking anything. No clock. No wrong way to tinker. MADE TO BE KID SAFE No ads. No in-app purchases. No pop-ups asking for money. Nothing to buy and nothing to sign up for. It works offline, anywhere, and progress saves right on the device. THIRTY FOUR HANDMADE LEVELS Twenty four play with the phone sideways and ten play with it upright. Each one teaches a new part, then dares you to combine them. There is a test bench too, running every single part at once. Build it. Run it. Watch the chaos work.

Screenshots

Reverse Reaction!4 screens
Pickle Machines4 screens

Verdict

The call

The clearest difference is in-app purchases: Pickle Machines at none against Reverse Reaction!'s 8. Pickle Machines also leads on ads (none vs shown) and update cadence (weekly vs every 5 months). Reverse Reaction!'s advantage is iOS requirement (13.0 vs 17.0). On price 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. Pickle Machines asks for nothing beyond the download.

UpkeepUpdate frequency

Reverse Reaction! ships an update every 5 months, Pickle Machines weekly. Both last shipped on October 31, 2026.

Scorecard4 real differences ยท 2 level
Reverse Reaction! versus Pickle Machines: the parameters behind the verdict, then further details
ParameterReverse Reaction!Pickle Machines
PriceFreeFree
Update frequencyEvery 5 monthsWeekly โ€” better
AdsYesNo โ€” better
In-app purchasesYesNo โ€” better
DevicesiPhone, iPad, iPod โ€” betteriPhone, iPad
Requires iOS13.0 โ€” better17.0
Further details โ€” not scored
Size62 MB13 MB
Age rating4+4+
DeveloperPercy Ng'uniBEGRIP

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
None

Pickle Machines

No in-app purchases

Questions

Is Reverse Reaction! free?
Reverse Reaction! is free to download, with in-app purchases available.
Is Pickle Machines free?
Pickle Machines is free to download, with no in-app purchases.
Do Reverse Reaction! or Pickle Machines have ads?
Reverse Reaction! shows ads; Pickle Machines does not.
Which is updated more often, Reverse Reaction! or Pickle Machines?
Reverse Reaction! ships an update every 5 months, and Pickle Machines weekly. Most recently, Reverse Reaction! was updated on October 31, 2026 and Pickle Machines on October 31, 2026.

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