Comparison

21Moves | Cube Puzzle Solver vs Qubo

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

Head to head
About

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.

Highlights
  • 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
Read full description

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/

About

Qubo

This app provides a distraction-free timer for puzzle cube enthusiasts to track and improve their solving times. It features precision timing, automatic personal best tracking, and a clean interface to help users focus on their performance.

Highlights
  • Precision timing to hundredths of a second
  • Hold-to-start system
  • Automatic personal best tracking
  • Clean, minimalist interface
  • Progress saving for all records
  • Supports multiple cube types
Features
Read full description

Qubo is a speedcubing timer that stays out of the way. Long-press to ready it, release to start, then tap anywhere on the screen to stop — no aiming for a small button while the clock is running. COMPETITION SCRAMBLES Scrambles for 3×3, 2×2 and Pyraminx are drawn at random from every state the puzzle can reach — the same standard used at official competitions. 4×4 and Windmill get random-move scrambles with redundant turns filtered out. Tap the scramble to see it as a full sequence of moves. SESSION STATS See how a practice run actually went: your personal best, a trend line across the session, and Ao5 and Ao12 averages for each puzzle. Every solve is kept with the scramble it was given and any +2 or DNF, stored on your device. PERSONAL BESTS Each puzzle tracks its own record, and your bests follow you across devices through iCloud. New records get the celebration they deserve. PUZZLES 3×3 is free, always. 2×2, 4×4, Windmill and Pyraminx each unlock with a one-time purchase — no subscriptions, ever. Curious about a locked puzzle? Watch a short video to earn free solves and try it before you buy. Whether you're learning your first algorithm or chasing sub-10, Qubo gives you competition-grade timing without the clutter.

Screenshots

21Moves | Cube Puzzle Solver4 screens
Qubo4 screens

Verdict

The call

The clearest difference is ads: 21Moves | Cube Puzzle Solver at none against Qubo's shown. 21Moves | Cube Puzzle Solver also leads on update cadence (weekly vs every 2 months) and ratings volume (59K vs 3). On price, rating, review sentiment and in-app purchases 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. 21Moves | Cube Puzzle Solver sells 10 in-app purchases, starting at $1.99 per month and Qubo sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.7 for 21Moves | Cube Puzzle Solver against 4.7 for Qubo. That said, the two scores are not equally well evidenced: 21Moves | Cube Puzzle Solver has 59K ratings behind it against 3, so its average is the more settled of the two. Written reviews are what separate them: 70% of 21Moves | Cube Puzzle Solver's written reviews are positive against 75% of Qubo's.

UpkeepUpdate frequency

21Moves | Cube Puzzle Solver ships an update weekly, Qubo every 2 months. The most recent releases landed on September 25, 2026 and August 5, 2026 respectively.

Scorecard4 real differences · 6 level
21Moves | Cube Puzzle Solver versus Qubo: the parameters behind the verdict, then further details
Parameter21Moves | Cube Puzzle SolverQubo
PriceFreeFree
Rating4.7 (59K ratings) — better4.7 (3 ratings)
Positive reviews69.6% of reviews75.0% of reviews — better
Number of ratings59K — better3
Update frequencyWeekly — betterEvery 2 months
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS14.0 — better18.0
Further details — not scored
Size157 MB9 MB
Age rating4+4+
DeveloperOpitas Inc.DigitalSandbox, LLC

Customer experience

21Moves | Cube Puzzle Solver

All ratings59,123 ratings
Positive93.0%
Neutral1.6%
Negative5.4%
Written reviews661 reviews
Positive69.6%
Neutral4.8%
Negative25.6%

Qubo

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive75.0%
Neutral25.0%
Negative0.0%

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

Qubo

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

21Moves | Cube Puzzle Solver

Subscriptions8
  • Unlimited Access$1.991 Month
  • Unlimited Access$3.991 Month
  • Unlimited Access2 variants$4.991 Year
Show 5 more
  • 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
One-time2
  • Unlimited Access$29.99
  • Unlimited Access$74.99
5 purchases

Qubo

One-time5
  • Unlock 2×2 Cube$0.99
  • Unlock Pyraminx Cube$0.99
  • Unlock 4×4 Cube$0.99
Show 2 more
  • Unlock Windmill Cube$0.99
  • Unlock All Cubes$2.99

Questions

Is 21Moves | Cube Puzzle Solver free?
21Moves | Cube Puzzle Solver is free to download, with in-app purchases available.
Is Qubo free?
Qubo is free to download, with in-app purchases available.
Which has better reviews, 21Moves | Cube Puzzle Solver or Qubo?
21Moves | Cube Puzzle Solver is rated higher. 21Moves | Cube Puzzle Solver averages 4.7 out of 5 from 59K ratings, while Qubo averages 4.7 from 3 ratings.
Do 21Moves | Cube Puzzle Solver or Qubo have ads?
Qubo shows ads; 21Moves | Cube Puzzle Solver does not.
Which is updated more often, 21Moves | Cube Puzzle Solver or Qubo?
21Moves | Cube Puzzle Solver ships an update weekly, and Qubo every 2 months. Most recently, 21Moves | Cube Puzzle Solver was updated on September 25, 2026 and Qubo on August 5, 2026.

Other comparisons