21Moves | Cube Puzzle Solver vs WatchThisCube
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
21Moves | Cube Puzzle Solver
This app helps you solve your Rubik's Cube with visual, step-by-step instructions. It offers a quick solver, a cube scanner to analyze your current puzzle state, and even identifies missing or misplaced pieces. Become a puzzle-solving pro and improve your concentration and speed.
- 3D cube scanning
- Visual step-by-step instructions
- Quick cube solving
- Cube fixer for missing/misplaced pieces
- Puzzle skill building
- Manual input for custom combinations
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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. You get a personalized guide for solving your magic cube no matter its current state. 21Moves also recommends fixes for your cube if a piece is missing or placed incorrectly. Download the ultimate Rubik’s cube solver and get easy to follow visual instructions that are sure to turn you into a magic cube master. 21MOVES FEATURES CUBE SCANNER - Getting started on your magic cube solution is easy with in-app scanning tools - Simply perform a 3D scan of your current cube using your camera and get started - 21Moves provides simple and clear instructions on how to approach your cube - You can also manually input your existing cube on 21Moves blank template for custom combinations QUICK CUBE SOLVER - 21Moves provides you with detailed instructions to solve your cube in just a few minutes - Test your problem solving skills as you reorganize your magic cube in under 21 moves - Easily reset a cube to solve it again - Avoid the hours of frustration that come with manually learning to solve a cube thanks to 21Moves CUBE FIXER - Solve puzzles and maintain your cube by identifying missing pieces or misplaced blocks - Fix your cube in minutes and get back to solving PUZZLE SKILL BUILDING - Become a problem-solving pro as you learn the ins and outs of solving different Rubik’s cube formats - Identify patterns after resolving puzzles to make it easier to tackle the next one - Memorize solutions and increase your speed as you progress through different combinations See what users are saying: • "My cube was pretty messed up yet this app managed to solve it in just 20 moves”. • "OMG It actually works! I thought it would be a gimmick… I’m SHOCKED! Thank you so much!” • "My cube was pretty messed up yet this app managed to solve it in just 20 moves”. • "It fixes ur Rubik’s cube in less than two minutes”. • "[...] I’ve tried this app and guess what happened it worked I always doubted on all these other fake rubiks apps solvers but this specific app is the best one”. • "[...] Simple, elegant, and user friendly for quite literally any age. Plus it makes you feel like a genius!” ------------ Questions or feedback? We read every single email and review. Get five-star customer service directly from the developer at nico@opitas.io or at https://bit.ly/3hoFQkN. Disclaimer: All company names (Rubik’s Brand Ltd) are trademarks or registered trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
WatchThisCube
This app provides a convenient puzzle timer directly on your wrist. It features customizable sounds and haptic feedback for crucial countdowns, allowing for hands-free operation. Times are automatically saved for easy tracking of your performance.
- On-wrist puzzle timer
- Sound and haptic feedback
- Inspection time alerts
- Automatic time saving
- Stackmat timer functionality
- Detachable watch use
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WatchThisCube is a Puzzle Timer for your wrist! Perfect for on the go, without having to carry a timer with you, or when you're in a pinch and need a quick solve or two! A key feature also includes SOUNDS & HAPTICS for your inspection time! Allowing you to FEEL a tap when you have 7 seconds left, 3 seconds left, and when the timer begins! All without having to take your eyes off the puzzle! With functionality similar to a traditional stackmat timer, you should be able to take right off with familiar gestures for control! You can even take the watch off of your wrist and set it down on the table, for familiarity! Tracking times is simple! Stop the timer, and they are saved! That way you know exactly how you did! WatchThisCube is the best way to quickly and easily make sure you always have your puzzle timer on hand! Literally!
Screenshots
Verdict
The clearest difference is ratings volume: 21Moves | Cube Puzzle Solver at 59K against WatchThisCube's 12. 21Moves | Cube Puzzle Solver also leads on update cadence (weekly vs monthly). WatchThisCube's advantage is rating (5.0 vs 4.7) and review sentiment (80% vs 70%). On price, ads, in-app purchases and monetization model 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
Both are free to download. 21Moves | Cube Puzzle Solver sells 10 in-app purchases, starting at $1.99 per month and WatchThisCube sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
WatchThisCube holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: 21Moves | Cube Puzzle Solver has 59K ratings behind it against 12, so its average is the more settled of the two. Written reviews point the same way: 70% of 21Moves | Cube Puzzle Solver's written reviews are positive against 80% of WatchThisCube's.
21Moves | Cube Puzzle Solver ships an update weekly, WatchThisCube monthly. The most recent releases landed on September 24, 2026 and August 11, 2026 respectively.
| Parameter | 21Moves | Cube Puzzle Solver | WatchThisCube |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (59K ratings) | 5.0 (12 ratings) — better |
| Positive reviews | 69.6% of reviews | 80.0% of reviews — better |
| Number of ratings | 59K — better | 12 |
| Update frequency | Weekly — better | Monthly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPod, Apple Watch |
| Requires iOS | 14.0 | 14.0 |
| Further details — not scored | ||
| Size | 157 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Opitas Inc. | Aaron Brannan |
Customer experience
21Moves | Cube Puzzle Solver
WatchThisCube
Bugs and requests
21Moves | Cube Puzzle Solver
Reported bugs
3 issues- Scanning issues due to lighting conditions
- App crashing or freezing after first use
- Inaccurate cube representation on screen
Requested features
3 requests- Support for different cube sizes (2x2, 4x4, etc.)
- Option to skip tutorial
- Ability to solve cube without payment
WatchThisCube
Not enough reviews yet to summarise bugs or requests.
In-app purchases
21Moves | Cube Puzzle Solver
- Unlimited Access$1.991 Month
- Unlimited Access$3.991 Month
- Unlimited Access2 variants$4.991 Year
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- Unlimited Access$7.991 Year
- Unlimited Access$9.991 Year
- Unlimited Access$14.991 Year
- Unlimited Access$19.991 Year
- Unlimited Access$24.991 Year
- Unlimited Access$29.99
- Unlimited Access$74.99
WatchThisCube
- $0.99 Tip$0.99
- $2.99 Tip$2.99
- $4.99 Tip$4.99
Questions
Is 21Moves | Cube Puzzle Solver free?
Is WatchThisCube free?
Which has better reviews, 21Moves | Cube Puzzle Solver or WatchThisCube?
Do 21Moves | Cube Puzzle Solver or WatchThisCube have ads?
Which is updated more often, 21Moves | Cube Puzzle Solver or WatchThisCube?
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