Comparison

Blek vs Rules!

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

Head to head
About

Blek

This is a minimalist puzzle game that challenges your imagination. Draw a line that collects all colored circles while avoiding obstacles. Discover elegant solutions and enjoy a magical experience as your creations come to life.

Highlights
  • Draw and animate lines
  • Collect colored circles
  • Avoid black holes
  • Multiple solutions per level
  • Elegant and intuitive design
Features
Read full description

Blek is a unique game about imagination and personality. Everything you draw keeps moving – and watching your creations move is like watching magic. The goal is simple: shape a line that collects all colored circles avoiding black holes on its route. There are no specific moves that you need to master. To every level countless solutions exist, from delightfully simple to exceptionally deep and complex, yet always elegant. ----- Articles & Commentaries ----- "The Most Brilliant iPad Game I've Played All Year." ~ Kotaku "One of the greatest joys of Blek is experimenting with your approach." ~ WIRED "It’s the sort of game you’d want to put on a space probe: when the aliens play it, they’ll take a liking to us right away." ~ The New Yorker "Wonderful experience" ~ Pocket Gamer "Blek is a thing of elegant, intuitive beauty" ~ Edge "One of the year’s best" ~ The New York Times ----- Awards ----- • Apple Design Award • Best Mobile Game - Casual Connect, Amsterdam • Excellence in Innovation - International Mobile Gaming Awards • Best Game - Content Award Vienna"

About

Rules!

Engage in a fast-paced, challenging, and fun puzzle game with a hundred levels. Features a daily brain workout for Apple Watch and animated stickers. Offers multiple game modes and unique mechanics.

Highlights
  • Daily Apple Watch brain workout
  • Animated sticker pack
  • Beginner, Expert, or Timeless game modes
  • Multi-touch interface
  • Color perception assistance
  • Surprising new game mechanics
Features
Read full description

• Includes a daily brain workout mini-game for Apple Watch • Includes animated sticker pack • App Store – Best Apple Watch Game of 2015 • App Store – Best of 2014 • German Developer Award 2014 – Best mobile Game • German Video Game Award 2015 – Best mobile Game • Pocket Gamer Awards 2015 Finalist Best Casual/Puzzle Game & Most Innovative Game RULES! is a cute puzzle game that's challenging, fast-paced and fun. • Choose your preferred type of game: Beginner, Expert or Timeless • “What’s presented here is a stylish, original, clever puzzle game that I’m having trouble putting down long enough to write this review.” ~ Gamezebo “A delightfully constructed memory test that grows in complexity and appeal the deeper in you go.” ~ Pocket Gamer “The Coding Monkeys have never released anything that wasn’t utterly brilliant, therefore Rules shall almost certainly be brilliant.” ~ Pocket Tactics Follow RULES! into a hundred level-deep maze of cuteness and order: • Multi-touch interface at its finest • Color perception assistance mode • Whales, Unicorns, Robots and Squirrels! • A plethora of surprising new game mechanics

Screenshots

Blek4 screens
Rules!4 screens

Verdict

The call

The clearest difference is rating: Blek at 4.5 against Rules!'s 4.2. Blek also leads on ratings volume (811 vs 67) and chart position (#27 vs unranked). Rules!'s advantage is update cadence (monthly vs every 4 months) and price ($2.99 vs $4.99). On review sentiment, ads, in-app purchases and device support 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

Blek costs $4.99 and Rules! $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Blek holds the better App Store score, 4.5 against 4.2. That said, the two scores are not equally well evidenced: Blek has 811 ratings behind it against 67, so its average is the more settled of the two. Written reviews point the same way: 73% of Blek's written reviews are positive against 71% of Rules!'s.

UpkeepUpdate frequency

Blek ships an update every 4 months, Rules! monthly. Both last shipped on November 13, 2026.

Scorecard6 real differences · 5 level
Blek versus Rules!: the parameters behind the verdict, then further details
ParameterBlekRules!
Price$4.99$2.99 — better
Rating4.5 (811 ratings) — better4.2 (67 ratings)
Positive reviews73.4% of reviews — better70.8% of reviews
Number of ratings811 — better67
Update frequencyEvery 4 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
Best chart rank#27 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Apple Watch — better
Requires iOS15.0 — better15.2
Further details — not scored
Size238 MB25 MB
Age rating4+4+
Developerkunabi brother GmbH137b

Customer experience

Blek

All ratings807 ratings
Positive88.5%
Neutral4.2%
Negative7.3%
Written reviews770 reviews
Positive73.4%
Neutral7.3%
Negative19.4%

Rules!

All ratings67 ratings
Positive73.1%
Neutral14.9%
Negative11.9%
Written reviews233 reviews
Positive70.8%
Neutral12.4%
Negative16.7%

User reviews

Blek

From 811 App Store ratings

What we love

  • 💡 Unique and creative concept
  • 👍 Relaxing and challenging gameplay
  • 🚀 Simple yet elegant design
  • 👍 No ads or in-app purchases

Room to improve

  • 🐛 Crashes and compatibility issues
  • 🔊 Annoying sound effects
  • 👎 Lack of instructions/tutorials
  • 👎 Repetitive and gets boring over time

Rules!

From 67 App Store ratings

What we love

  • 👍 Challenging and fun game
  • 👍 Gorgeous design and smooth UI
  • 👍 Great brain workout
  • 👍 Addictive gameplay
  • 👍 Fair monetization with no ads or IAPs

Room to improve

  • 🕰️ Very short time limit
  • 🔁 Having to restart from level 1 after losing
  • 🎨 Colorblind-unfriendly
  • 🤔 Repetitive gameplay with same rule order

Bugs and requests

Blek

Reported bugs

3 issues
  • Crashes when trying to save screenshots
  • Compatibility issues on larger screens
  • Line disappears randomly during gameplay

Requested features

4 requests
  • Add more levels and content
  • Implement a level select or skip option
  • Add sound/music controls
  • Improve UI and controls

Rules!

Reported bugs

2 issues
  • Freezing and crashing issues, especially on Apple Watch
  • Unresponsive tapping on certain tiles

Requested features

5 requests
  • Option to save progress and continue from last level
  • Randomized rule order
  • Difficulty settings with longer time limits
  • Colorblind accessibility options
  • More game modes and challenges

In-app purchases

None

Blek

No in-app purchases

None

Rules!

No in-app purchases

Questions

Is Blek free?
Blek costs $4.99, with no in-app purchases.
Is Rules! free?
Rules! costs $2.99, with no in-app purchases.
Which has better reviews, Blek or Rules!?
Blek is rated higher. Blek averages 4.5 out of 5 from 811 ratings, while Rules! averages 4.2 from 67 ratings.
Do Blek or Rules! have ads?
Neither Blek nor Rules! shows ads.
Which is updated more often, Blek or Rules!?
Blek ships an update every 4 months, and Rules! monthly. Most recently, Blek was updated on November 13, 2026 and Rules! on November 13, 2026.

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