Comparison

Defend the Brain vs CodeAB

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

Head to head
About

Defend the Brain

Test your brain's speed and dominance between the left and right hemispheres. Compete globally in a game of split-second reactions. See if you can keep up with historical geniuses.

Highlights
  • Brain speed test
  • Left vs. Right brain dominance
  • Global leaderboards
  • Split-second reaction challenges
  • Compete with friends
Read full description

Your brain is much faster than you think. Maybe the world's fastest. Find out now! Compete with friends from around the world. A breathtaking game of 0.000001 seconds. The game ends when you give up. Challenge it now! The right hand is connected to the left brain and the left hand is connected to the right brain. If you use both hands at the same time, which brain will you use more? Who is your brain like? Would you like to use your left brain as much as Da Vinci, Newton and Edison? Or will he use his right brain as much as Archimedes, Mozart, and Beethoven? Test it now! Pixel Bistro is a creative studio. We are trying new innovations in the digital world. Privacy Policy We believe privacy is very important. Please consult our Web site privacy page.

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

Defend the Brain4 screens
CodeAB4 screens

Verdict

The call

The clearest difference is monetization model: CodeAB at free against Defend the Brain's free with in-app purchases. Defend the Brain's advantage is iOS requirement (8.0 vs 17.6). On price, rating, ratings volume and update cadence 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. Defend the Brain sells 1 one-off in-app purchase and CodeAB sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Defend the Brain against 5.0 for CodeAB. Both are backed by a comparable volume of ratings — 2 and 3 respectively.

UpkeepUpdate frequency

Defend the Brain ships an update every 5 weeks, CodeAB every 6 weeks. The most recent releases landed on October 8, 2026 and October 21, 2026 respectively.

Scorecard2 real differences · 8 level
Defend the Brain versus CodeAB: the parameters behind the verdict, then further details
ParameterDefend the BrainCodeAB
PriceFreeFree
Rating5.0 (2 ratings)5.0 (3 ratings)
Positive reviews—100.0% of reviews
Number of ratings23 — better
Update frequencyEvery 5 weeks — betterEvery 6 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS8.0 — better17.6
Further details — not scored
Size57 MB3 MB
Age rating9+4+
DeveloperPixel BistroEssentialCapture Inc

Customer experience

Defend the Brain

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

CodeAB

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

In-app purchases

1 purchases

Defend the Brain

One-time1
  • Remove Ads$0.99
1 purchases

CodeAB

One-time1
  • CodeAB$2.99

Questions

Is Defend the Brain free?
Defend the Brain is free to download, with in-app purchases available.
Is CodeAB free?
CodeAB is free to download, with in-app purchases available.
Which has better reviews, Defend the Brain or CodeAB?
Defend the Brain and CodeAB are both rated 5.0 out of 5 on the App Store, from 2 and 3 ratings respectively.
Do Defend the Brain or CodeAB have ads?
Neither Defend the Brain nor CodeAB shows ads.
Which is updated more often, Defend the Brain or CodeAB?
Defend the Brain ships an update every 5 weeks, and CodeAB every 6 weeks. Most recently, Defend the Brain was updated on October 8, 2026 and CodeAB on October 21, 2026.

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