Comparison

Quell+ vs Blek

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

Head to head
About

Quell+

An enchanting logic puzzle game with over 80 cunningly crafted levels. It offers a perfectly balanced difficulty curve for a soothing experience, complemented by beautiful hand-painted art and a custom soundtrack. Enjoy iCloud integration for seamless syncing across devices.

Highlights
  • Over 80 logic puzzles
  • Lateral thinking challenges
  • Balanced difficulty curve
  • Hand-painted art
  • Custom soundtrack
  • iCloud integration
  • GameCenter achievements
Features
Read full description

***** Thanks to the 4 million+ players who’ve already fallen in love with Quell, Quell Reflect, and Quell Memento, and helped us to No 1 in several countries! ***** Quell is an enchanting game of logic which has taken the puzzle world by storm. Don’t take our word for it! Read our user reviews (thanks guys!), and see for yourself! "Quell. Is. Perfect" - No Dpad "Woozily hypnotic" – Eurogamer "Gaming App of the Day" – Kotaku "Beautifully relaxing" – AppSpy "Calming zen-like atmosphere" – Gamezebo "Absolute joy to play" - Pocket Full of Apps "Incredibly polished. Extra fun. Constantly amazes" – iPhoneAlley "Seems to lower blood pressure instead of raising it" – BestKidsApps * Over 80 levels of cunningly crafted puzzles – requires lateral thinking! * Perfectly balanced difficulty curve – soothing, not frustrating! * iCloud integration / Universal app – Sync on all your iOS devices! * HD and Retina support – beautiful hand-painted art! * GameCenter Achievements and Leaderboards – Challenge your friends! * Custom soundtrack by top composer Steven Cravis – Calming music helps the brain! * Localized for English, French, German, Italian, Spanish, Polish, Portuguese, Chinese, Korean, Taiwanese, and Japanese. * Requires iOS 6.0 or higher. Fall in love with Quell today...

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"

Screenshots

Quell+4 screens
Blek4 screens

Verdict

The call

The clearest difference is in-app purchases: Blek at none against Quell+'s 6. Blek also leads on chart position (#53 vs unranked). Quell+'s advantage is review sentiment (98% vs 73%) and rating (4.9 vs 4.5). On ratings volume, update cadence, ads 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

Quell+ costs $1.99 and Blek $4.99 up front. Quell+ sells 6 one-off in-app purchases. Blek asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Quell+ holds the better App Store score, 4.9 against 4.5. Both are backed by a comparable volume of ratings — 487 and 811 respectively. Written reviews point the same way: 98% of Quell+'s written reviews are positive against 73% of Blek's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 4 months. Both last shipped on November 6, 2026.

Scorecard7 real differences · 4 level
Quell+ versus Blek: the parameters behind the verdict, then further details
ParameterQuell+Blek
Price$1.99 — better$4.99
Rating4.9 (487 ratings) — better4.5 (811 ratings)
Positive reviews98.2% of reviews — better73.4% of reviews
Number of ratings487811 — better
Update frequencyEvery 4 monthsEvery 4 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
Best chart rank—#53 — better
DevicesiPhone, iPad, iPod, Apple TV — betteriPhone, iPad, iPod
Requires iOS8.0 — better15.0
Further details — not scored
Size71 MB238 MB
Age rating4+4+
DeveloperFallen Tree Games Ltdkunabi brother GmbH

Customer experience

Quell+

All ratings486 ratings
Positive96.7%
Neutral1.6%
Negative1.6%
Written reviews497 reviews
Positive98.2%
Neutral1.2%
Negative0.6%

Blek

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

User reviews

Quell+

From 487 App Store ratings

What we love

  • 👍 Awesome Game
  • 👍 Worth the money
  • 👍 Best puzzle game ever
  • 👍 Love everything about this game
  • 👍 Challenging and fun

Room to improve

  • 🐛 iPhone 15 app takeover issue
  • 🐛 Occasional crashes on iPhone 11

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

Bugs and requests

Quell+

Reported bugs

2 issues
  • iPhone 15 app takeover issue
  • Quell often refuses to close on iPhone 11

Requested features

2 requests
  • More Quell games
  • Ability to transfer in-app purchases across devices

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

In-app purchases

6 purchases

Quell+

One-time6
  • 50 Coins$0.99
  • 150 Coins$1.99
  • Jewel Detector$1.99
Show 3 more
  • Super Rewind$1.99
  • Skeleton Key$2.99
  • Ability Special Offer$2.99
None

Blek

No in-app purchases

Questions

Is Quell+ free?
Quell+ costs $1.99, and also offers in-app purchases.
Is Blek free?
Blek costs $4.99, with no in-app purchases.
Which has better reviews, Quell+ or Blek?
Quell+ is rated higher. Quell+ averages 4.9 out of 5 from 487 ratings, while Blek averages 4.5 from 811 ratings.
Do Quell+ or Blek have ads?
Neither Quell+ nor Blek shows ads.
Which is updated more often, Quell+ or Blek?
Quell+ ships an update every 4 months, and Blek every 4 months. Most recently, Quell+ was updated on November 6, 2026 and Blek on November 6, 2026.

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