kubic vs 4=10
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
kubic
This optical illusion puzzle game challenges players to construct impossible structures inspired by M.C. Escher's art. With a clean design and minimalistic graphics, it offers over 60 mind-bending puzzles across various geometric and spatial themes. Features include layer locking, zoom, and an in-game hint system to aid progression.
- Optical illusion puzzles
- M.C. Escher inspired designs
- Geometric and impossible objects
- Layer locking and manipulation
- Zoom and view controls
- In-game hint system
- Progress syncing via iCloud
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***** #1 Puzzle Game in over 20 Countries! ***** ***** "This quirky puzzle game bends the limits of space and reality to make you create structures that, in theory, should be impossible to replicate." - Pocket Gamer 8/10 ***** ***** "As soothing as it is challenging, this grown-up puzzler opened our minds. Time flew by as we recreated sculpture after sculpture in increasingly difficult configurations. The game’s 3D graphics invite focus and sharpen problem-solving skills, making it an entertaining brain-builder. M.C. Escher would be impressed by the twisty, physics-defying structures." - App Store Notes ***** kubic is a unique optical illusion puzzle game based on M.C. Escher's art, impossible objects and other geometric designs. The object is to construct the goal configuration from a number of pieces. Presented in a simple, clean design and minimalistic art, kubic is a premium game with over 60 escher-esque puzzles. When you click on a piece, it pops to the front-most layer, and may overlap other pieces. When you combine the pieces, they do not merge. If there are extra pieces, you may hide them behind the others. You can also lock layers and drag pieces without changing their layer order. You can also use two finger pinch to zoom in and out and drag the view for a better control. If you are stuck on a puzzle you can simply skip it and re-visit at a later time. Rest assured, all puzzles can be solved but beware, some puzzles are hard! Just take your time...Tip: It helps to plan ahead and build figures from back to front. If you truly get stuck, there is a in-game hint system. You can use it to get started or even get the whole puzzle solved. Levels divided in 6 groups: • Ocean - "2D" Shapes are basically two-dimensional arrangements. • Desert - "3D" Shapes appear to be three-dimensional, but remember to think in two dimensions. • Mountain - "Convex/Concave" These optical illusions are inspired by Escher's famous "Convex and Concave" lithograph. • Sky - "Up/Down" These optical illusions are inspired by the Penrose Triangle featured in Escher's lithograph "Waterfall”. • Escher - Based on letter designs that spell out MC ESCHER. • Print - Based on the printable magazine version of Convex-Concave puzzles. Kubic is localized and supports 12 languages including English, French, German, Italian, Japanese, Korean, Chinese (simplified), Chinese (traditional), Portuguese, Russian, Spanish, and Turkish Game supports iCloud for progress syncing between devices. Convex Concave puzzles from the Heaven and Earth game are included with permission. The puzzles were designed by Scott Kim, Puzzlemaster (scottkim.com), and the Heaven & Earth team. Enjoy!
4=10
A casual number puzzle game for all ages. Combine four given numbers using basic math operations to reach the target of 10. It offers a relaxing experience that improves mental math skills and number familiarity.
- Combine four numbers to equal 10
- Basic math operations
- Gradually increasing difficulty
- One-handed play
- Improves mental math skills
- Relaxing and soothing gameplay
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4=10 is a simple number puzzle game suitable for all ages. The objective is to use four given numbers and combine them in an expression that equals 10. For example, you can solve it by adding 1, 2, 3, and 4 together (1+2+3+4=10). The game relies on basic math operations and starts off easy, gradually increasing in difficulty. It's designed to be a relaxed and soothing experience. You can play it with just one hand, using your phone whenever and wherever you like. By playing this game, you'll become more comfortable with numbers and improve your basic math skills, including mental calculations, using parentheses, and following the correct order of operations. Enjoy the game and happy calculating! :)
Screenshots
Verdict
The clearest difference is review sentiment: 4=10 at 98% against kubic's 36%. 4=10 also leads on rating (4.9 vs 4.4) and ads (none vs shown). On price, update cadence, 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. kubic sells 5 one-off in-app purchases and 4=10 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
4=10 holds the better App Store score, 4.9 against 4.4. That said, the two scores are not equally well evidenced: 4=10 has 2.5K ratings behind it against 245, so its average is the more settled of the two. Written reviews point the same way: 36% of kubic's written reviews are positive against 98% of 4=10's.
Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 9, 2026 and September 20, 2026 respectively.
| Parameter | kubic | 4=10 |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (245 ratings) | 4.9 (2.5K ratings) — better |
| Positive reviews | 36.4% of reviews | 98.0% of reviews — better |
| Number of ratings | 245 | 2.5K — better |
| Update frequency | Every 2 months | Every 2 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 383 MB | 33 MB |
| Age rating | 4+ | 4+ |
| Developer | Pixel Envision Ltd. | Base Exponent ehf. |
Customer experience
kubic
4=10
User reviews
kubic
From 245 App Store ratingsWhat we love
- 💡 Original and clever puzzles
- 🧠 Mind-bending challenges
- 👍 Fun and engaging gameplay
- ✨ Well-realized game concept
- 🤔 Puzzles make you think
Room to improve
- 😠 Frustrating tile placement
- 📉 Steep difficulty curve
- 💸 Excessive and intrusive ads
- 😩 Stressful user experience
- ⚠️ Ads interrupt gameplay
4=10
From 2.5K App Store ratingsWhat we love
- 👍 Simple and fun
- 🧠 Helps improve math skills
- 🔒 No ads or in-app purchases
- 💡 Challenging yet relaxing
Room to improve
- 🤔 Some levels too easy
- 🤯 Can get repetitive at times
Bugs and requests
kubic
Reported bugs
5 issues- Tiles not sticking correctly
- App won't launch offline
- App won't load/crashes on launch
- In-app purchase attempts forced
- Bug with in-app purchase activation
Requested features
5 requests- Fix tile placement issues
- Improve difficulty curve
- Option to rotate puzzles
- Option to lock in pieces
- Dark mode for night play
4=10
Reported bugs
1 issue- None reported
Requested features
2 requests- Add more difficulty levels
- Introduce new gameplay modes
In-app purchases
kubic
- 10 Hints$0.99
- No Ads$1.99
- 25 Hints$1.99
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- 50 Hints$2.99
- 100 Hints$3.99
4=10
- 4≠10 add-on$3.99









