Comparison

Change Game! vs CodeAB

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

Head to head
About

Change Game!

Build and manage a thriving city across diverse environments, balancing resource management, economic growth, and community well-being. Face environmental challenges like heat waves and rising sea levels as player actions impact the planet's climate.

Highlights
  • City building in various environments
  • Resource and business management
  • Farming, fishing, and livestock
  • Environmental impact simulation
  • Community health and happiness management
  • Research and development investment
Features
Read full description

Change Game - Play with the Planet! Build a city in an urban, rural, mountain, coastal or island environment; Supply it with power and water; Farm, fish and raise livestock; Create factories and businesses; Manage natural resources, and trade with other players; Invest in research, education and entertainment; Care for the health, happiness and well-being of your community. But watch out: the more you and the other players generate emissions on the planet, the greater the challenges you will face! You will encounter heat waves, droughts, floods, rising sea levels or the spread of new diseases… Will your city survive? Rise to the challenge and find out! Change Game was created, following the Game Thinking methodology, by the CMCC Foundation (Euro-Mediterranean Center on Climate Change) - the Italian centre for international and multidisciplinary research on the interactions between climate, socio-economic systems and natural ecosystems - with funding from Climate KIC EIT and development by Melazeta S.r.l., a company specialized in the development of educational games.

About

CodeAB

Test your logic and deduction skills in this addictive number puzzle game. Figure out the secret 4-digit code using hints after each guess. It's a fresh take on a classic puzzle, perfect for quick brain training.

Highlights
  • Deduction and logic gameplay
  • Secret 4-digit code challenge
  • Clues after every guess
  • No leading zeros or repeating digits
  • Quick brain training rounds
  • Classic Bulls & Cows style
Features
Read full description

What is the code? Who's on the first? What's on the second? Put your logic and deduction skills to the test with CodeAB, a fun and addictive number puzzle game! Meet CodeAB — a fresh spin on the classic Bulls & Cows number puzzle. Your challenge: figure out the secret 4-digit code before your guesses run out! Your goal is simple: find the secret 4-digit code. - No leading zeros. - No repeating digits. - Clues after every guess help guide you toward the solution. How It Works - A green number = correct digit in the correct place. - An orange number = correct digit in the wrong place. - Keep analyzing the hints until you crack the code! Why You’ll Love CodeAB - Easy to learn, hard to master - A fresh take on the classic “Bulls & Cows” logic game - Quick rounds that train your brain anytime, anywhere - Great for both casual players and puzzle enthusiasts Free to Play – Upgrade for Unlimited Fun - Play up to 10 rounds for free and then 3 rounds per day - Upgrade once ($2.99) to unlock unlimited play and remove interruptions - One-time purchase, no subscriptions Are you ready to put your logic to the ultimate test? Download CodeAB today and see how fast you can break the code!

Screenshots

Change Game!4 screens
CodeAB4 screens

Verdict

The call

The clearest difference is rating: CodeAB at 5.0 against Change Game!'s 1.0. CodeAB also leads on review sentiment (100% vs 58%) and ratings volume (3 vs 1). Change Game!'s advantage is in-app purchases (none vs 1) and update cadence (every 3 weeks vs every 6 weeks). On price, ads, monetization model 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

Both are free to download. CodeAB sells 1 one-off in-app purchase. Change Game! asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

CodeAB holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 3 respectively. Written reviews point the same way: 58% of Change Game!'s written reviews are positive against 100% of CodeAB's.

UpkeepUpdate frequency

Change Game! ships an update every 3 weeks, CodeAB every 6 weeks. The most recent releases landed on October 24, 2026 and October 21, 2026 respectively.

Scorecard6 real differences · 4 level
Change Game! versus CodeAB: the parameters behind the verdict, then further details
ParameterChange Game!CodeAB
PriceFreeFree
Rating1.0 (1 ratings)5.0 (3 ratings) — better
Positive reviews58.3% of reviews100.0% of reviews — better
Number of ratings13 — better
Update frequencyEvery 3 weeks — betterEvery 6 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS11.0 — better17.6
Further details — not scored
Size541 MB3 MB
Age rating4+4+
DeveloperCMCC FoundationEssentialCapture Inc

Customer experience

Change Game!

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews12 reviews
Positive58.3%
Neutral8.3%
Negative33.3%

CodeAB

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Change Game!

No in-app purchases

1 purchases

CodeAB

One-time1
  • CodeAB$2.99

Questions

Is Change Game! free?
Change Game! is free to download, with no in-app purchases.
Is CodeAB free?
CodeAB is free to download, with in-app purchases available.
Which has better reviews, Change Game! or CodeAB?
CodeAB is rated higher. Change Game! averages 1.0 out of 5 from 1 ratings, while CodeAB averages 5.0 from 3 ratings.
Do Change Game! or CodeAB have ads?
Neither Change Game! nor CodeAB shows ads.
Which is updated more often, Change Game! or CodeAB?
Change Game! ships an update every 3 weeks, and CodeAB every 6 weeks. Most recently, Change Game! was updated on October 24, 2026 and CodeAB on October 21, 2026.

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