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Independent automated assessment · 3 signal sources · 510 reviews scanned · analyzed 2026-10-05.

21Moves | Cube Puzzle Solver

Opitas Inc.

How to Solve a 3x3 Magic App

4.7 ★59,600 ratings
—Downloads
4+Age rating
165 MBApp size
FreeIn-app purchases

About this app

Stuck on how to solve your Rubik's Cube? 21Moves has your back. Solve your magic cube in under 3-minutes with visual step-by-step instructions to help you become a puzzle solving pro. 21Moves provides you with a visual guide on how to solve your cube in under, you guessed it, 21 moves! Dive into the easiest, most efficient way to solve one of the most popular puzzles enjoyed by millions.

Join over 3 million cubers who have used 21Moves to develop top problem-solving and pattern recognition skills. Save hours of frustration with simple instructions guiding you to solve your cube in a matter of minutes. Improve your concentration and speed over time to show off your Rubik’s cube solving skills to the world.

Getting started with 21Moves is simple. Simply scan a 3D model of your cube and get step-by-step directions on how to solve it.…

Preview

Real screenshots from the store listing.

8 screenshots
21Moves | Cube Puzzle Solver screenshot 1
21Moves | Cube Puzzle Solver screenshot 2
21Moves | Cube Puzzle Solver screenshot 3
21Moves | Cube Puzzle Solver screenshot 4
21Moves | Cube Puzzle Solver screenshot 5
21Moves | Cube Puzzle Solver screenshot 6
21Moves | Cube Puzzle Solver screenshot 7
21Moves | Cube Puzzle Solver 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.

Automated analysis in progress

Which version this describes

When we ran this analysis, and what the store lists now.

This analysis describes version 2.1.7 of the app, analyzed 2026-10-05 . The app may have changed since.

The store currently lists version 2.1.7, updated 2025-01-14.

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

One source only — shown, not confirmed 1

A single kind of evidence. We publish these because withholding them would be the bigger distortion, and we do not treat any of them as a finding we stand behind.

From the store listing: Usable without an account
One source onlyShown, not confirmed — the only source is the store privacy disclosure.view evidence
The app's own screens offer a way past sign-up — guest access, skipping, or browsing before registering — rather than gating the product behind an account. The store's privacy disclosure is checked alongside it: that disclosure is self-reported, so it corroborates this credit rather than establishing it.
What we saw: The store privacy disclosure (3 entries) links no contact details or identifiers to the user — consistent with an app that does not require an account. Self-reported by the developer.

Assessment & version history

App changes and Appworthy events in one timeline.

Store listing updated to version 2.1.7.

What this app sells

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

Business modelFree

Prices and terms as disclosed by the store listing.