Real store listing. Store data comes from public listings; the assessment type and evidence coverage are labeled on this page.
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Public review signal · 80 reviews scanned · scope limited to review patterns.

Unscrew: Screw Pin Jam Puzzle

Clark Studio

Screw Puzzle: Nuts And Bolts

4.8 ★6,998 ratings
—Downloads
12+Age rating
366 MBApp size
FreeIn-app purchases

About this app

Welcome to the ultimate screw pin jam puzzle! Activate your brain with this clever nuts and bolts screw puzzle brainteaser. This screw away 3d pin puzzle will test your skills. Our unscrew challenges combine classic screw bolts nuts with smart thinking.

How to Play: First, tap your mobile screen to remove the screw pin slowly, then sort the screw bolts nuts by colors to finish each level. Watch the unscrewed nuts fall into matching boxes at the same time. If you get stuck, you can use fun boosters or add extra screw sort 3d boxes. These tools help you solve tricky screw jam challenges.…

Preview

Real screenshots from the store listing.

8 screenshots
Unscrew: Screw Pin Jam Puzzle screenshot 1
Unscrew: Screw Pin Jam Puzzle screenshot 2
Unscrew: Screw Pin Jam Puzzle screenshot 3
Unscrew: Screw Pin Jam Puzzle screenshot 4
Unscrew: Screw Pin Jam Puzzle screenshot 5
Unscrew: Screw Pin Jam Puzzle screenshot 6
Unscrew: Screw Pin Jam Puzzle screenshot 7
Unscrew: Screw Pin Jam Puzzle screenshot 8

Independent evidence report

Evidence and review signals

This is where the page changes from an app-store listing into an evidence report: findings, important reviews, pricing and a dated history.

Store listing and review signals

What we measured

Each line is a measurement published as a measurement, never a verdict.

How these are measured

Each line is a measurement, published as a measurement. Where we have not looked, the line says so rather than reading as a zero.

Developer replies to reviews
Replies to fewer than 1 review in 20
Price in the store description
States no price and billing period
Cancelling, in the store description
Does not say how to cancel
Themes reported by reviewers
No theme reported
Counted from the reviews we have read for this app. "No theme reported" means no theme reached our reporting threshold — it is not a finding that nothing is wrong with this app, and we do not say it is.
Five-star share of ratings
80–89% five-star
Arithmetic on the stores' own published rating counts. It says nothing about why the ratings fall where they do.

In the package we scanned

No package has been scanned for this app, so nothing is published about what it ships. That is an absence of evidence about the app, not a finding about it.

Graded bands · predicate set 1.4 · how these are measured

What the analysis found

App-specific findings, grouped by what each one rests on. How they are graded lives on its own page.

Methodology
Aggressive ad load19 reviews · user report
Misleading advertising5 reviews · user report

Highlighted reviews

Representative public review excerpts shown as user reports, not Appworthy audit evidence.

Aggressive ad load
“Insane amount of ads — Could be fun, but you see way more ads than gameplay. The levels are made to be impossible to pass without 6-10 ads. I wish I were exaggerating. Some ads make sense, but this is excessive.”
1★ · App Store · 2026-09-30
Aggressive ad load
“No ads? — Playing another game with ads, this game appeared claiming “no annoying ads”. After completing level 12, it’s been nothing but ads. Deleting after review.”
1★ · App Store · 2026-09-22
Aggressive ad load
“Not only too many but inappropriate — There’s too many ads to pass levels but the type of ads are completely inappropriate. The game’s concept, I would rate “Rated E” however, having an advert that gives a first person view of sex is…”
1★ · App Store · 2026-09-11

Assessment & version history

App changes and Appworthy events in one timeline.

Store listing updated to version 2.3.1.

What this app sells

Useful store-disclosed pricing, kept below the app listing.

Business modelFree

Prices and terms as disclosed by the store listing.