Wood Nuts & Bolts Puzzle

Puzzle

6.6~~/10~~

Our score

★ 4.3 Google Play·50M+ installs

Reviewed by Editorial Team, ScoredApps editorial · updated 2026-09-06

Screenshots

Board of coloured planks pinned by bolts with a timer above

Denser level with overlapping planks and four free slots

Level fifty-one with tightly packed planks and a running clock

Board with planks arranged in a triangle around a hub

Level with a pink plank crossing several others

Board with green bars pinned across the top and bottom

About Wood Nuts & Bolts Puzzle

Unscrew coloured bolts to free the planks they pin, in an order that does not jam the board, against a timer of three or four minutes. Free slots at the top limit how many bolts of each colour you can hold. Free with advertising, removing it costs $4.99, and a three-day pass costs the same.

Game information

DeveloperABI GLOBAL LTD.

Version13.9 (Android) · 7.4.12 (iOS)

Size218.01 MB (Android) · 521 MB (iOS)

Price / In-appFree

Contains adsYes

In-app purchasesYes

Content rating13+

Requires (Android)Android 7.0+

Requires (iOS)iOS 13.0+

Offline modeFull — levels play on the device without a connection

Interface languagesEN, FR, DE, HI, JA, KO + 7 more

Store rating (Google Play)4.3 from 490,923 ratings

Installs50M+

Updated by developer2026-09-04

Data checked2026-09-07

Specs come from the official store listings and were last checked on 2026-09-07. Developers change pricing and requirements — check the store page before installing.

Wood Nuts & Bolts Review: $4.99 for Three Days

The Slots Are the Puzzle, Not the Screws

Planks are pinned to a board by coloured bolts, and unscrewing one moves it into a slot at the top. When three bolts of one colour meet in the slots they clear; fill every slot with mismatched colours and the level is lost. So the puzzle is not which bolt to remove but in what order — a plank that comes free too early blocks the bolt underneath it, and a timer of two to four minutes runs while you work it out. Levels in the store screens run from four to fifty-one, tightening steadily.

Boosters Undo the Mistakes

Four helpers sit under the board: add an extra slot, remove a colour, undo the last move and a hammer that clears a bolt outright. Each has a small plus button attached, which is the tell — they are consumables, replenished by watching adverts or by paying, and a hard level is designed to end with one of them just out of reach. It is a competent execution of a mechanic that spread across a hundred near-identical clones in two years, and the timers are what separate this one from the untimed versions.

Advert Removal at $4.99, and a Three-Day Pass

The App Store lists Remove Ads at $4.99, tickets from $2.99 to $14.99, a Master Pass at $9.99 and — the line worth reading twice — a three-day VIP pass, also $4.99. Apple rates the game 13+, citing contests, advertising and references to alcohol, tobacco or drugs, which in a game about screwing planks together comes from the adverts rather than the content. Google Play shows 4.3 stars from 491,000 reviews on 50 million installs, with an advertising badge; the install is 520.7 MB. Neither store average is bad, but both sit below the puzzle games with real design behind them.

Pros

Order of removal matters more than speed
Slot limit creates a real losing condition
Levels are short and restart instantly
Rated 4.5 on the App Store across 234,000 ratings
Runs on inexpensive phones without trouble

Cons

A three-day pass costs $4.99, the same as removing adverts
Boosters are consumable and priced at the point of failure
Apple's content warnings come from the adverts shown
A 520.7 MB install for a wooden board

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Verdict

A tidy execution of the unscrewing puzzle that flooded the stores after 2023: the slot limit gives it a real losing condition, and the timer stops it being idle busywork. What drags it down is the shop — consumable boosters offered at each failure, and a three-day pass priced the same as removing the adverts permanently. Play it offline and free.

Gameplay7.0A genuine ordering puzzle, though it repeats itself well before level fifty.

Controls8.0Tap a bolt to unscrew it; nothing about the input can go wrong.

Replay value7.0Hundreds of levels of the same shape, with timers as the only escalation.

Graphics & sound7.0Clean wood-and-metal presentation with a satisfying unscrewing sound.

Monetisation4.5Adverts, consumable boosters, $4.99 removal and a three-day pass at $4.99.

6.6out of 10 · weighted average of the five scores above

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Frequently asked questions

Can it be played offline?

Levels run on the device, so it plays without a signal — and offline the adverts cannot load, which removes the main irritation for free. Progress and rewards sync when the connection returns.

What does it sell?

Remove Ads at $4.99, ticket packs from $2.99 to $14.99, a Master Pass at $9.99 and a three-day VIP pass at $4.99. That last one is the aggressive item: the same price as permanent advert removal, for seventy-two hours of benefits.

How much space does it need?

520.7 MB and iOS 13 or later, which is disproportionate for a wooden board and a set of bolts. The advertising libraries and the level data account for most of it; the game itself asks almost nothing of the processor.

Is there any multiplayer?

No. It is entirely single-player, with daily tasks and events providing the only structure beyond the level list. Nothing is shared, compared or competed for against other people, which is normal for this genre but worth stating.

How long is a level?

Two to four minutes, capped by the timer shown at the top of the board. Failing restarts immediately with no life system, which is unusually generous — the pressure comes from the clock rather than from a wait.