Comparison

Screw Jam Master vs Rosca

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

Head to head
About

Screw Jam Master

Engage your intellect in a challenging puzzle game where you strategically unscrew nuts and bolts. Progress through thousands of levels, unlock new models, and experience the excitement of solving intricate screw-based challenges. This game offers a unique way to train your brain and relieve stress.

Highlights
  • Unscrew nuts and bolts to solve puzzles
  • Thousands of levels to master
  • Unlock new levels and models
  • Train your brain
  • Stress relief
  • Beautiful color screw models
Features
Read full description

Welcome to Screw Jam Master : Nuts Puzzle , it is a game that requires you to use your intelligence. In Screw Jam Master, you can experience the joy of controlling bolts, nuts, and unscrewing them. As you progress through levels, you will feel unprecedented excitement. In the game world of unscrewing nuts, you can unlock more levels and models, and the challenges never stop!! With thousands of levels to master, Screw Jam Master introduces new nuts and bolts challenges that will keep you engaged. This inventive puzzle game delivers a deeply immersive experience, where the excitement of solving puzzles with screws, nuts, and bolts never ceases. So just pay attention! There’s always a new screw to twist and a fresh puzzle to solve. Features: - Lots of beautiful color screw models and scene - Unscrew the Nuts and Bolts to solve the puzzle - The best method for stress relief - Train your brain in this Screw Jam Master game How to Play ? Tap to unscrew the nuts Strategically plan your moves to unscrew all the nuts Fill in all the toolboxes to win We sincerely hope you can have an enjoyable screw puzzle experience in Screw Master: Nuts Jam Puzzle!

About

Rosca

Features
Read full description

Rosca is a game about sorting colored nuts onto bolts, in a warm workshop with no rush. Move nuts from one bolt to another until every bolt holds a single color. Easy to understand, hard to put down. • 1,000 levels, the same for everyone, each one checked before release: every level can be solved. One in ten is a breather. • Three modes: Workshop (the campaign), Daily Challenge (one board for everybody each day, with streak and calendar) and Relax (no move counter, no target). • A real hint: it shows you the next move of an actual solution from where you are, not a random nudge. • Stuck warning: if the game can prove there is no way out, it tells you and offers to undo. • Undo and restart, free and unlimited. • Every level has a move target; hit it and you earn a badge. Miss it and nothing happens: no stars, no penalties. • No lives, no timer, no move limit, no waiting, no virtual currency. • Real accessibility: high contrast, large text, color symbols for players who can't tell colors apart, and animations you can turn off. • English, Spanish, Portuguese, French, German and Italian. Works offline, no account needed. Ads are kept light: videos you choose to watch in exchange for a hint or an extra bolt, plus at most one short ad after some rounds, never during a level. The one-time "No Ads" purchase removes every ad and gives you unlimited hints and extra bolts, forever.

Screenshots

Screw Jam Master4 screens
Rosca4 screens

Verdict

The call

The clearest difference is in-app purchases: Screw Jam Master at none against Rosca's 1. Screw Jam Master also leads on iOS requirement (15.0 vs 17.0). Rosca's advantage is update cadence (every 3 days vs weekly). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Rosca sells 1 one-off in-app purchase. Screw Jam Master asks for nothing beyond the download.

UpkeepUpdate frequency

Screw Jam Master ships an update weekly, Rosca every 3 days. The most recent releases landed on October 23, 2026 and October 29, 2026 respectively.

Scorecard3 real differences · 7 level
Screw Jam Master versus Rosca: the parameters behind the verdict, then further details
ParameterScrew Jam MasterRosca
PriceFreeFree
Rating4.8 (246 ratings) — better—
Positive reviews26.7% of reviews—
Number of ratings246 — better—
Update frequencyWeeklyEvery 3 days — better
AdsYesYes
In-app purchasesNo — betterYes
MonetizationAd-supported—
DevicesiPhone, iPod — betteriPhone
Requires iOS15.0 — better17.0
Further details — not scored
Size274 MB126 MB
Age rating4+4+
Developer燕 肖RAFAEL DAVID DEVOS CEREZO

Bugs and requests

Screw Jam Master

Reported bugs

5 issues
  • Game freezing
  • App crashing
  • Glitching after refresh
  • Ads not closing
  • Levels are unwinnable

Requested features

4 requests
  • Option to skip ads
  • Remove ad banner
  • No ads option
  • Polish language support

Rosca

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Screw Jam Master

No in-app purchases

1 purchases

Rosca

One-time1
  • No Ads$5.99

Questions

Is Screw Jam Master free?
Screw Jam Master is free to download, with no in-app purchases.
Is Rosca free?
Rosca is free to download, with in-app purchases available.
Do Screw Jam Master or Rosca have ads?
Both Screw Jam Master and Rosca show ads.
Which is updated more often, Screw Jam Master or Rosca?
Screw Jam Master ships an update weekly, and Rosca every 3 days. Most recently, Screw Jam Master was updated on October 23, 2026 and Rosca on October 29, 2026.

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