Reverse Reaction! vs Chain Rules
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Reverse Reaction!
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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 — so you don't. It says DON'T TAP — so you do. Simple to understand, hilariously hard to actually do. HOW IT WORKS • Read the instruction • Do the EXACT OPPOSITE • Do it fast — 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) • One-hand, one-minute rounds — perfect for queues, commutes, and "one more try" spirals • Levels that escalate from "easy" to "how did I fail THAT" • 3 hearts per run — every mistake counts • TODAY'S TRICK — a fresh daily challenge to keep your brain on its toes • Clean, hand-drawn notebook style with zero clutter TRAIN YOUR BRAIN BY BREAKING IT Opposite Day! isn't just about speed — 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/
Chain Rules
A block-matching puzzle game where you strategically remove blocks and trigger chain reactions. Between rounds, select unique abilities that alter gameplay, offering a fresh challenge with each session. Enjoy varied difficulty modes and high score tracking.
- Block matching gameplay
- Trigger chain reactions
- Select game-altering abilities
- Dynamic board challenges
- Multiple difficulty modes
- High score tracking
- Offline play
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Remove matching blocks. Trigger chain reactions. Pick abilities that change the game. Chain Rules is a block-matching puzzle with a twist: between rounds, you choose abilities that stick with you. Bombs. Cats. Magnets. Score multipliers. Meanwhile the board fights back — gravity shifts, tiles freeze, and targets climb. Simple to learn. Tough to master. Every run plays differently. Three difficulty modes. 15+ abilities. High score tracking. No internet needed.
Screenshots
Verdict
The clearest difference is in-app purchases: Chain Rules at none against Reverse Reaction!'s 8. Reverse Reaction!'s advantage is iOS requirement (13.0 vs 15.0). On price, ads 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
Both are free to download. Reverse Reaction! sells 8 one-off in-app purchases. Chain Rules asks for nothing beyond the download.
| Parameter | Reverse Reaction! | Chain Rules |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 5 months | — |
| Ads | Yes | Yes |
| In-app purchases | Yes | No — better |
| Monetization | — | Ad-supported |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 62 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | Percy Ng'uni | Upstream Partners, LLC |
In-app purchases
Reverse Reaction!
- Space Theme$0.99
- Sketch Theme$0.99
- Deep Sea Theme$0.99
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- Retro Theme$0.99
- Remove Ads Forever$1.99
- 500 Coins$1.99
- Remove Ads$3.00
- 1000 Coins$4.99
Chain Rules
No in-app purchases
Questions
Is Reverse Reaction! free?
Is Chain Rules free?
Do Reverse Reaction! or Chain Rules have ads?
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