Comparison

Karel the Robot vs Boolearn

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

Head to head
About

Karel the Robot

This educational app introduces programming concepts through interactive logic puzzles. It features a friendly robot that follows simple instructions, making coding accessible and fun for beginners and children.

Highlights
  • Learn programming concepts
  • Interactive logic puzzles
  • Robot-based instruction
  • Structured programming environment
  • Beginner-friendly coding
Read full description

Are you fed up by pointless computer games? Then you've come to the right place. Welcome to the world of Karel! An excellent place to learn, play and have fun...all at the same time! Karel for iPad is a logical game for children and/or an educational programming language for beginners. The main idea is to show that programming could be easy and fun - especially for kids. Karel is a small robot who lives in his world. He is able to follow simple instructions given manually or by a program. In the first mode he can be used even by small kids for solving simple logical exercises. In the second one it provides a complete environment for teaching structured programming.

About

Boolearn

An interactive educational platform to learn digital electronics through practical, accessible, and fun gameplay. Explore decimal and binary numbers, logic gates, and logic levels with hands-on challenges.

Highlights
  • Interactive learning platform
  • Digital electronics fundamentals
  • Decimal and binary numbers
  • Logic gates and levels
  • Hands-on challenges
  • Intuitive gameplay
Features
Read full description

Boolearn is an interactive educational platform designed to help you learn the world of digital electronics in a practical, accessible, and fun way. Developed by Gustavo Diefenbach, the game invites you to discover the foundations of the technology we use every day. Chapter I: Decimal and Binary Numbers Understand how decimal numbers work and discover the binary system, the core of digital computation. Chapter II: Logic Gates and Logic Levels The first chapter introduces the basics of digital logic, teaching how logic gates work and how logic levels (0 and 1) control digital systems. Step by step, you’ll learn to play with logic gates like AND, OR, NOT, and more — all through intuitive gameplay and hands-on challenges.

Screenshots

Boolearn4 screens

Verdict

The call

The clearest difference is price: Boolearn at Free against Karel the Robot's $1.99. Boolearn also leads on update cadence (every 5 days vs every 20 months). Karel the Robot's advantage is iOS requirement (15.6 vs 17.0). On rating, ratings volume, ads 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

Boolearn is free to download; Karel the Robot costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Karel the Robot against 5.0 for Boolearn. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

UpkeepUpdate frequency

Karel the Robot ships an update every 20 months, Boolearn every 5 days. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

Scorecard4 real differences · 6 level
Karel the Robot versus Boolearn: the parameters behind the verdict, then further details
ParameterKarel the RobotBoolearn
Price$1.99Free — better
Rating5.0 (1 ratings)5.0 (2 ratings)
Positive reviews50.0% of reviews—
Number of ratings12 — better
Update frequencyEvery 20 monthsEvery 5 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPadiPhone, iPad — better
Requires iOS15.6 — better17.0
Further details — not scored
Size3 MB6 MB
Age rating4+4+
DeveloperCloudMakers, s. r. o.Gustavo Diefenbach

In-app purchases

None

Karel the Robot

No in-app purchases

None

Boolearn

No in-app purchases

Questions

Is Karel the Robot free?
Karel the Robot costs $1.99, with no in-app purchases.
Is Boolearn free?
Boolearn is free to download, with no in-app purchases.
Which has better reviews, Karel the Robot or Boolearn?
Karel the Robot and Boolearn are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.
Do Karel the Robot or Boolearn have ads?
Neither Karel the Robot nor Boolearn shows ads.
Which is updated more often, Karel the Robot or Boolearn?
Karel the Robot ships an update every 20 months, and Boolearn every 5 days. Most recently, Karel the Robot was updated on November 1, 2026 and Boolearn on October 30, 2026.

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