Comparison

uu vs kubic

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

Head to head
About

uu

This is a minimalist puzzle game with 200 challenging levels, offering a fun and intricate experience. It features a level selection system, the ability to replay past levels, and options to skip difficult stages or unlock all levels.

Highlights
  • 200 challenging levels
  • Leaderboards and medals
  • Replay past levels
  • Skip difficult levels
  • Unlock all levels
Features
Read full description

uu - 2nd in "focus" (aa, uu, ff, au, rr, ao, rl, sp, th, ki, ci, sn, lo, ba, ov, sh, fi, do, ru & ti) Different entry points. Timing is key. Picture a multifaceted aa, more complexity, more intricacies but just has a much fun. If you're already deep into playing aa or new to the range, you'll instantly love uu, it's an amazing next step in our minamalistic gaming journey. uu starts with 200 awesome levels, with more added all the time. You can also top the leaderboard and earn medals! (bronze, silver and gold). There's 200 levels to solve right now, intertwined with all sorts of tweaks and surprises. You can also go back and replay any level you've already passed, at any time (Choose Level). If you're stuck on a really tricky level, skip it! (Tap Skip on the Fail Screen) If you can't wait, unlock all 200 levels and replay at your own pace! (Choose Level > Unlock All Levels) Thanks for all your support, I hope you're enjoying the "focus" series thus far. Handmade in Australia, General Adaptive

About

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.

Highlights
  • 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
Features
Read full description

***** #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!

Screenshots

uu3 screens
kubic4 screens

Verdict

The call

The clearest difference is rating: kubic at 4.4 against uu's 3.7. uu's advantage is ads (none vs shown) and review sentiment (47% vs 36%). On price, ratings volume, update cadence 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. uu sells 3 one-off in-app purchases and kubic 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

kubic holds the better App Store score, 4.4 against 3.7. Both are backed by a comparable volume of ratings — 202 and 245 respectively. Written reviews complicate that: 47% of uu's written reviews are positive against 36% of kubic's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

uu ships an update every 5 weeks, kubic every 2 months. The most recent releases landed on August 30, 2026 and September 9, 2026 respectively.

Scorecard4 real differences · 6 level
uu versus kubic: the parameters behind the verdict, then further details
Parameteruukubic
PriceFreeFree
Rating3.7 (202 ratings)4.4 (245 ratings) — better
Positive reviews47.1% of reviews — better36.4% of reviews
Number of ratings202245 — better
Update frequencyEvery 5 weeks — betterEvery 2 months
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS8.0 — better13.0
Further details — not scored
Size13 MB383 MB
Age rating4+4+
DeveloperGeneral Adaptive Apps Pty LtdPixel Envision Ltd.

Customer experience

uu

All ratings202 ratings
Positive62.4%
Neutral12.4%
Negative25.2%
Written reviews189 reviews
Positive47.1%
Neutral15.9%
Negative37.0%

kubic

All ratings245 ratings
Positive82.9%
Neutral6.5%
Negative10.6%
Written reviews33 reviews
Positive36.4%
Neutral15.2%
Negative48.5%

User reviews

uu

From 202 App Store ratings

What we love

  • 🎮 Great offline time sink
  • 👍 Addictive and challenging
  • 🎯 Levels 1-4 passed with ease

Room to improve

  • 🔁 Level 5 impossible
  • 🔁 Level 155 freezes
  • 🐛 Occasional glitches and bugs

kubic

From 245 App Store ratings

What 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

Bugs and requests

uu

Reported bugs

3 issues
  • Dots spawn inside central circle on iPhone
  • Center stops spinning before pins run out on level 155
  • Dots migrate to inside of circle on level 142

Requested features

3 requests
  • Option to skip difficult levels
  • More color and music
  • Level progress indicators

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

In-app purchases

3 purchases

uu

One-time3
  • Skip uu Level$0.99
  • Remove uu Ads$1.99
  • Unlock All of uu$3.99
5 purchases

kubic

One-time5
  • 10 Hints$0.99
  • No Ads$1.99
  • 25 Hints$1.99
Show 2 more
  • 50 Hints$2.99
  • 100 Hints$3.99

Questions

Is uu free?
uu is free to download, with in-app purchases available.
Is kubic free?
kubic is free to download, with in-app purchases available.
Which has better reviews, uu or kubic?
kubic is rated higher. uu averages 3.7 out of 5 from 202 ratings, while kubic averages 4.4 from 245 ratings.
Do uu or kubic have ads?
kubic shows ads; uu does not.
Which is updated more often, uu or kubic?
uu ships an update every 5 weeks, and kubic every 2 months. Most recently, uu was updated on August 30, 2026 and kubic on September 9, 2026.

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