Comparison

Rainbow Monsters vs Screws Nut Puzzle

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

Head to head
About

Rainbow Monsters

A fun color-matching game where players guide monsters to eat falling rainbow pieces. Slide monsters left or right to match colors, with a numbers mode for easier identification. Compete with friends through Game Center and unlock achievements.

Highlights
  • Color matching gameplay
  • Monster character control
  • Falling rainbow pieces
  • Numbers mode for colorblind players
  • Game Center integration
  • 23 unlockable achievements
Features
Read full description

Feed the Rainbow Monsters! Slide the monsters left or right to catch falling rainbow pieces with the matching color. It starts simply, then becomes faster and more challenging. How high can you score? COLORFUL ARCADE FUN Match seven colors, build streaks and discover bonuses while keeping your monsters fed. NUMBERS MODE Finding colors difficult to distinguish? Turn on Numbers mode to match the numbers on the falling pieces with the correct monster. ACHIEVEMENTS AND LEADERBOARDS Sign in to Game Center to discover 23 achievements and compete on the leaderboards. You can also enjoy the game without signing in. SHARE YOUR SCORES Share your high score or last score as an image, with a download link so friends can join the challenge. PLAY YOUR WAY Choose whether music and sound effects are enabled. No advertising—just colorful monster-feeding fun.

About

Screws Nut Puzzle

Features
Read full description

Screws Nut Puzzle - An Addictive Mechanical Challenge Description Embark on a thrilling journey with Screws Nut Puzzle, a unique and captivating mobile game that tests your mechanical wits and problem-solving skills. In this mesmerizing puzzle adventure, you'll encounter a series of intricate challenges designed to push your cognitive abilities to the limit. As you progress through the game, you'll encounter various levels filled with screws, nuts, and bolts of different sizes and shapes. Your objective is to assemble them correctly, forming stable structures that will withstand the test of time. With each successful completion, you'll unlock new, more complex puzzles that will keep you engaged and entertained for hours on end. Key Features: Intuitive Touch Controls: Navigate effortlessly through the game's interface, designed for optimal touchscreen performance. Variety of Challenges: Enjoy a diverse range of puzzles, each offering a unique set of obstacles and solutions. Stunning Visuals: Immerse yourself in the game's beautiful, detailed environments and realistic screw, nut, and bolt designs. Endless Replayability: With randomly generated puzzles and increasing difficulty, the game offers endless replayability, ensuring a fresh challenge with each playthrough. What's New in the Latest Version So, what are you waiting for? Download Screws Nut Puzzle today and embark on an exciting journey of mechanical challenges and cognitive stimulation. Challenge your mind, hone your skills, and become a master puzzle solver!

Screenshots

Rainbow Monsters4 screens
Screws Nut Puzzle4 screens

Verdict

The call

The clearest difference is price: Screws Nut Puzzle at Free against Rainbow Monsters's $0.99. Screws Nut Puzzle also leads on in-app purchases (none vs 1) and device support (3 vs 1). Rainbow Monsters's advantage is ads (none vs shown) and update cadence (every 2 months vs every 17 months).

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

Screws Nut Puzzle is free to download; Rainbow Monsters costs $0.99 up front. Rainbow Monsters sells 1 one-off in-app purchase. Screws Nut Puzzle asks for nothing beyond the download.

UpkeepUpdate frequency

Rainbow Monsters ships an update every 2 months, Screws Nut Puzzle every 17 months. The most recent releases landed on November 6, 2026 and November 4, 2026 respectively.

Scorecard6 real differences · 3 level
Rainbow Monsters versus Screws Nut Puzzle: the parameters behind the verdict, then further details
ParameterRainbow MonstersScrews Nut Puzzle
Price$0.99Free — better
Rating4.5 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 2 months — betterEvery 17 months
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS17.615.6 — better
Further details — not scored
Size10 MB141 MB
Age rating4+17+
DeveloperNUIFISH LIMITEDDdlyouxi

In-app purchases

1 purchases

Rainbow Monsters

One-time1
  • Remove Ads$1.99
None

Screws Nut Puzzle

No in-app purchases

Questions

Is Rainbow Monsters free?
Rainbow Monsters costs $0.99, and also offers in-app purchases.
Is Screws Nut Puzzle free?
Screws Nut Puzzle is free to download, with no in-app purchases.
Do Rainbow Monsters or Screws Nut Puzzle have ads?
Screws Nut Puzzle shows ads; Rainbow Monsters does not.
Which is updated more often, Rainbow Monsters or Screws Nut Puzzle?
Rainbow Monsters ships an update every 2 months, and Screws Nut Puzzle every 17 months. Most recently, Rainbow Monsters was updated on November 6, 2026 and Screws Nut Puzzle on November 4, 2026.

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