Comparison

Nuts & Bolts vs Entropy

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

Head to head
About

Nuts & Bolts

Features
Read full description

Welcome to 'Nuts & Bolts: 3D Screw Puzzle', the ultimate mind-bending challenge! Prepare to go on a mechanical journey unlike any other in Wood Nuts & Bolts, Screw Puzzle. Your aim is to untwist all of the nuts and bolts on the Wood Nuts and strategically drop them one by one. This difficult and addictive Wood Nuts & Bolts, Screw puzzle game will put your problem-solving abilities to the test as you twist, spin, and maneuver your way through a maze of complicated wood contraptions. The puzzles become increasingly difficult and satisfyingly complex as you progress through the levels. Exciting Features of Nuts & Bolts: 3D Screw Puzzle: • Solve Bolts and Screw Puzzles by freely twisting, unscrewing, and screwing pins. • No time limit allows for uninterrupted play. • Unlimited levels! A lot of Wood Nuts & Bolts, Screw pin strategies await you. Wood Nuts & Bolts, Screw Puzzle is perfect for those who: • Enjoy puzzle games like nuts & bolts, wood nuts, bolts puzzle, screw pin puzzle, screws and bolts, screw nut puzzle, screw master, bolts and nuts • Want to challenge new obstacles • Enjoy challenging puzzle levels and wood materials. • Enjoy the ASMR sound of woods Embark on a journey through a succession of difficult stages, encountering a variety of nuts, bolts, and screws dispersed over the game board. Your mission is to carefully manage these components in order to properly deconstruct them. Each level introduces new hurdles and complications, so you'll need to think critically and plan your moves carefully to solve the puzzles quickly. 'Nuts & Bolts: 3D Screw Puzzle', with its straightforward controls and spectacular visuals, offers hours of engaging gaming for puzzle enthusiasts of all ages. Whether you're a casual gamer searching for a soothing task or an experienced puzzler looking for a new test of wit, this game has something for everyone. So, are you up to the challenge? Download 'Nuts & Bolts: 3D Screw Puzzle now and begin deciphering the mechanical mysteries! Term of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Entropy

Features
Read full description

Social media dilutes focus; "Entropy: Zero" sharpens it.  Stop the doom scroll. Switch to a puzzle that pulls your brain from fog into flow state. Choose how you train your attention across two distinct modes, designed to replace mindless scrolling with tactical satisfaction: Levels Mode:  Master Your Progress! Rebuild your focus step-by-step across 80 intense levels.  Start on a manageable 8x8 grid and fight your way to the chaotic, high-speed 14x14 final stages.  Every level you beat is a tangible measure of your growing mental sharpness. Survival Mode:  Test Your Endurance! How long can you hold your attention under fire? In this endless mode, the entropy never stops. Push your concentration to its absolute limit as you manage escalating pressure and lock into a deep, sustained flow state. SYSTEM FEATURES & MECHANICS: • Precision is Everything: Plan your moves carefully. Every move demands total focus. Aim for efficiency, not just speed. • Risk vs. Reward: You can’t just tap wildly. Placing a patch on healthy territory causes Collateral Damage, accelerating the infection. • Tactical Arsenal: The current shape doesn't fit? "Skip" it to find the perfect piece to heal the grid. • Critical Stakes: The system reaches critical failure at exactly 80% corruption. Fix the tiles before the screen is overrun. • Par Times & Integrity: Earn high-score bonuses for maintaining your "Survival Integrity" and beating level Par Times. • Cyberpunk Aesthetic: Immerse yourself in a sleek, glowing neon cyber-interface. Order has collapsed. Chaos is spreading. Enter the grid and restore balance in Entropy, a tactical puzzle game where every move counts. The system reaches critical failure at 80% corruption. Can you hold back the chaos?

Screenshots

Nuts & Bolts4 screens
Entropy3 screens

Verdict

The call

The clearest difference is ads: Entropy at none against Nuts & Bolts's shown. Entropy also leads on update cadence (every 2 weeks vs every 3 months). Nuts & Bolts's advantage is iOS requirement (12.0 vs 18.6). 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. Nuts & Bolts sells 2 in-app purchases, starting at $4.99 per 7 days and Entropy sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Nuts & Bolts ships an update every 3 months, Entropy every 2 weeks. The most recent releases landed on November 8, 2026 and November 5, 2026 respectively.

Scorecard3 real differences · 3 level
Nuts & Bolts versus Entropy: the parameters behind the verdict, then further details
ParameterNuts & BoltsEntropy
PriceFreeFree
Update frequencyEvery 3 monthsEvery 2 weeks — better
AdsYesNo — better
In-app purchasesYesYes
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better18.6
Further details — not scored
Size239 MB6 MB
Age rating4+4+
DeveloperAtta Mohi Ud DinErdener Uyan

In-app purchases

2 purchases

Nuts & Bolts

Subscriptions2
  • remove ad weekly$4.997 Days
  • remove ad monthly$9.991 Month
4 purchases

Entropy

One-time4
  • Emergency Kit$0.99
  • Hacker Bundle$2.99
  • Developer Access$4.99
Show 1 more
  • Survival Mode$9.99

Questions

Is Nuts & Bolts free?
Nuts & Bolts is free to download, with in-app purchases available.
Is Entropy free?
Entropy is free to download, with in-app purchases available.
Do Nuts & Bolts or Entropy have ads?
Nuts & Bolts shows ads; Entropy does not.
Which is updated more often, Nuts & Bolts or Entropy?
Nuts & Bolts ships an update every 3 months, and Entropy every 2 weeks. Most recently, Nuts & Bolts was updated on November 8, 2026 and Entropy on November 5, 2026.

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