Comparison

Crazy Contraptions vs Gem Sort

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

Head to head
About

Crazy Contraptions

Design and build intricate machines to solve physics-based puzzles. Experiment with various interactive objects to create chain reactions and achieve goals in a sandbox environment that rewards creativity and logic.

Highlights
  • Hundreds of physics puzzles
  • Build creative contraptions
  • Trigger chain reactions
  • Experiment freely
  • Relaxed, non-timed gameplay
  • Satisfying solutions
Features
Read full description

Welcome to Crazy Contraptions! Turn simple objects into brilliant, chaotic solutions. In Crazy Contraptions, every level is a fun physics puzzle game where creativity matters just as much as logic. Build wild machines, connect interactive objects, and trigger satisfying chain reactions to reach the goal. Drop, launch, bounce, and experiment your way through each challenge. Try different ideas, tweak your design, and discover what works. Sometimes the simplest setup wins. Sometimes the most ridiculous contraption is exactly right. A Physics Puzzle Game That Rewards Creativity Inspired by classic Rube Goldberg–style gameplay, Crazy Contraptions is all about thinking differently. Combine objects, test your ideas, and watch your physics-based puzzle solutions unfold in real time. Every puzzle is a small sandbox where logic meets imagination. Features: - Hundreds of fun and challenging physics puzzles - Build creative contraptions using simple parts - Trigger chain reactions with timing and precision - Many levels, from easy to quite tricky - Experiment freely and have fun - Relaxed, non-timed gameplay - Easy to learn, satisfying to master Solve It Your Way Try something simple. Try something clever. Or try something completely wild. Break it. Rebuild it. Improve it. Watch as everything clicks into place and your contraption finally works. Perfect For: - Fans of physics puzzle games and creative puzzle solving - Players who enjoy brain teasers and logic challenges - Creative thinkers who like experimenting - Anyone who loves chain reactions and satisfying solutions Play Anytime Whether you have a few minutes or want to dive in for hours, Crazy Contraptions is perfect for quick sessions or deep problem-solving. Think. Build. Break it. Fix it. When everything finally works... it’s beautiful chaos.

About

Gem Sort

Transform piles of colorful gems into stunning pixel-art mosaics. Sort each jewel by color to reveal hidden images of fruits, animals, and more. Enjoy a relaxing, offline coloring experience with satisfying ASMR sounds and no forced ads.

Highlights
  • Create pixel art from gems
  • Sort gems by color
  • Offline gameplay
  • Relaxing, no time limits
  • ASMR-style sound effects
  • Hand-crafted levels
Features
Read full description

Turn piles of sparkling jewels into beautiful pixel-art pictures. Sort each gem into place by color and watch a hidden image — fruits, animals, and more — light up tile by tile. A cozy pixel-art coloring game you can play offline, with no ads forced between moves. Why players love Gem Sort • Hand-crafted pictures — every level designed by humans, no lazy auto-gen • Satisfying ASMR-style gem clinks as each tile snaps into place • Relaxing, antistress pace — color at your own speed, never a time limit • Dark-mode, eye-friendly palette for late-night play • Fully offline — no sign-up, no wifi needed How to play 1. Tap a colored gem pile to pick it up. 2. Drop it onto the matching slot in the picture grid. 3. Fill every tile with its correct color. 4. Complete the picture to reveal your sparkling artwork. Boosters that actually help • Magic — clear one misplaced gem • Brush — swap two gems • Magnet — pull every gem of one color into place Perfect for • Coffee break, commute, or bedtime wind-down • Fans of pixel art, diamond painting, bead mosaics, and gem-sorting puzzles • Anyone who finds coloring relaxing and satisfying Free to play All pictures are free. Coins for boosters are earned by completing pictures and watching optional ads. Ready to sort some sparkle into art? Download Gem Sort and complete your first picture in seconds. Support & feedback: https://red2new.com/privacy.html Privacy: https://red2new.com/privacy.html © 2026 redeye

Screenshots

Crazy Contraptions4 screens
Gem Sort4 screens

Verdict

The call

The clearest difference is review sentiment: Crazy Contraptions at 100% against Gem Sort's 0%. Crazy Contraptions also leads on rating (4.7 vs 1.0) and ratings volume (18 vs 1). Gem Sort's advantage is in-app purchases (none vs 1). On price, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Crazy Contraptions sells 1 one-off in-app purchase. Gem Sort asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Crazy Contraptions holds the better App Store score, 4.7 against 1.0. That said, the two scores are not equally well evidenced: Crazy Contraptions has 18 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of Crazy Contraptions's written reviews are positive against 0% of Gem Sort's.

UpkeepUpdate frequency

Crazy Contraptions ships an update fortnightly, Gem Sort every 11 days. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

Scorecard6 real differences · 4 level
Crazy Contraptions versus Gem Sort: the parameters behind the verdict, then further details
ParameterCrazy ContraptionsGem Sort
PriceFreeFree
Rating4.7 (18 ratings) — better1.0 (1 ratings)
Positive reviews100.0% of reviews — better0.0% of reviews
Number of ratings18 — better1
Update frequencyFortnightlyEvery 11 days — better
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better18.0
Further details — not scored
Size382 MB83 MB
Age rating4+4+
DeveloperDave ShworanRedeye Game

Customer experience

Crazy Contraptions

All ratings17 ratings
Positive94.1%
Neutral5.9%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Gem Sort

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews2 reviews
Positive0.0%
Neutral50.0%
Negative50.0%

In-app purchases

1 purchases

Crazy Contraptions

One-time1
  • Remove Ads$2.99
None

Gem Sort

No in-app purchases

Questions

Is Crazy Contraptions free?
Crazy Contraptions is free to download, with in-app purchases available.
Is Gem Sort free?
Gem Sort is free to download, with no in-app purchases.
Which has better reviews, Crazy Contraptions or Gem Sort?
Crazy Contraptions is rated higher. Crazy Contraptions averages 4.7 out of 5 from 18 ratings, while Gem Sort averages 1.0 from 1 ratings.
Do Crazy Contraptions or Gem Sort have ads?
Both Crazy Contraptions and Gem Sort show ads.
Which is updated more often, Crazy Contraptions or Gem Sort?
Crazy Contraptions ships an update fortnightly, and Gem Sort every 11 days. Most recently, Crazy Contraptions was updated on October 28, 2026 and Gem Sort on October 25, 2026.

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