Cube CFOP vs Stack Guru
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Cube CFOP
Master the 3x3 cube with this comprehensive guide to the Fridrich method. Learn F2L, OLL, and PLL algorithms, save your favorites, and practice with daily flashcards. Designed for speedcubers by speedcubers.
- F2L (First 2 Layers) guide
- 1-Look & 2-Look OLL
- PLL (Permutation of Last Layer) algorithms
- Notations reference
- Favorites list with flashcards
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Learn CFOP, the most popular speedcubing method, one case at a time. Every F2L, OLL and PLL algorithm, with flashcards, quizzes and a timed drill to make them stick. EVERY CASE OF CFOP • 41 F2L, 57 OLL and 21 PLL cases, plus 2-Look OLL and 2-Look PLL to get you started. • Alternative algorithms for many cases: pick the one that suits your hands, or write your own. The editor checks that it solves the case. • Watch any algorithm on a 3D cube, and tap a move to play up to it. • See any F2L, OLL or PLL case from each of its four angles, and write or create the algorithm for that angle. • Setup moves for each case, and room for your own alias and note. • Search by name, alias, group or note. LEARN WITH FLASHCARDS • Add the cases you are working on to Learning. • Spaced repetition brings each card back when it is due. Grade it Again, Hard, Good or Easy. • Practice your hard, new or random cards whenever you like. • Report: a heat map of your study days, your streak, and what is due in the next 7 days. PRACTICE UNTIL IT IS AUTOMATIC • OLL and PLL Recognition Quizzes: name the case from its pattern, against the clock. • F2L Corner Quiz: name the sticker a corner hides. • Execution Drill: time a case and beat your best. GUIDES • The CFOP method step by step: Overview, Cross, F2L, OLL and PLL. The Cross guide starts from the daisy, for a first cross. • Example Solve: watch one whole solve on the 3D cube, with every step and case named. • Notation, with every move shown on a cube. • Finger Patterns: the triggers and grips behind fast turning. MADE FOR THE WAY YOU CUBE • Your color scheme and the way you hold the cube. • Light, Dark or System appearance. • iPhone, iPad and iPhone Duo, with two-column layouts on wide screens and hardware keyboard shortcuts. One purchase. No ads, no subscription, no account and no usage analytics.
Stack Guru
This app helps users memorize and practice a specific card stack, offering customizable practice modes and scheduled reminders. It features seamless integration with Apple Watch for on-the-go practice and progress tracking.
- Customizable practice modes
- Scheduled practice reminders
- Apple Watch integration
- Dark mode support
- CloudKit (iCloud) data security
- Offline practice capability
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Become Mnemonica stack guru! Select how and what to practice, schedule reminders and practice directly on your wrist using Apple Watch - all with dark mode support! WHY While studying Mnemonica by Juan Tamariz, I started to look for an app to serve me as a learning tool. I wanted the app to automatically remind me to practice as well as being able to quickly practice on my Apple Watch (preferably with an complication displaying some daily progress). Unfortunately I did not find what I was looking for and decided to implement the app myself. This app became Stack Guru. CUSTOMIZE Practice parts of the stack, or the whole stack - you decide! Create your custom practice experience by combining practice modes such as Card to Number, Number to Card, What Comes After, What Comes Before or ACAAN, together with selected parts of the stack. This let you either focus on cementing the basics or perfecting your existing knowledge and master the stack. REMINDER Repetition is the mother of all learning. Stack Guru can help you both memorize and to keep the stack fresh in memory. Simply set reminders and let the app notify when to have a quick practice session. Like your own personal stack trainer. APPLE WATCH Having the tool directly on your wrist makes it super easy to take a short break and focus on the stack. Anywhere and anytime! Use the complication to get the progress of your daily goal and have a quick practice session only a tap away. SECURE AND PRIVATE Practice result data stored online is stored using Apple CloudKit (iCloud) to keep the data secure and private to you. The private database data is accessible only by you. When Stack Guru is used offline, the data is temporarily saved on the device to be synchronized and removed later, when the app is back online.
Screenshots
Verdict
The clearest difference is price: Stack Guru at Free against Cube CFOP's $2.99. Stack Guru also leads on update cadence (monthly vs every 3 months) and review sentiment (100% vs 89%). Cube CFOP's advantage is ratings volume (166 vs 5). On rating, 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
Stack Guru is free to download; Cube CFOP costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.8 for Cube CFOP against 4.8 for Stack Guru. That said, the two scores are not equally well evidenced: Cube CFOP has 166 ratings behind it against 5, so its average is the more settled of the two. Written reviews are what separate them: 89% of Cube CFOP's written reviews are positive against 100% of Stack Guru's.
Cube CFOP ships an update every 3 months, Stack Guru monthly. The most recent releases landed on October 20, 2026 and June 4, 2026 respectively.
| Parameter | Cube CFOP | Stack Guru |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 4.8 (166 ratings) | 4.8 (5 ratings) |
| Positive reviews | 89.3% of reviews | 100.0% of reviews — better |
| Number of ratings | 166 — better | 5 |
| Update frequency | Every 3 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPod, Apple Watch — better |
| Requires iOS | 17.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 11 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Tuan Truong | Jonas Eriksson |
Customer experience
Cube CFOP
Stack Guru
Bugs and requests
Cube CFOP
Reported bugs
1 issue- Animation doesn't work offline
Requested features
13 requests- Add 2 Look PLL option
- Sync between devices (iPhone/iPad)
- Setup generator for OLL, PLL
- 3D resolution animation
- How to read algorithms explanation
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- More advanced flashcard customization
- Option to disallow rotation moves
- Similar app for Roux method
- Include cross method explanation
- Add function to shuffle cube after solving
- Remove ads (paid version)
- Allow rotation of cube picture for different algs
- Reshuffle favorites and alg lists
Stack Guru
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Cube CFOP
No in-app purchases
Stack Guru
No in-app purchases








