Comparison

Catdoku vs Image Brain

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

Head to head
About

Catdoku

This puzzle game reimagines Sudoku by replacing numbers with cute cats. It offers various grid sizes and daily challenges to keep players engaged. Enjoy a relaxing yet mentally stimulating experience with a feline twist.

Highlights
  • Cat-themed Sudoku gameplay
  • Multiple grid sizes (4x4, 6x6, 9x9)
  • Daily puzzle challenges
  • Suitable for beginners and pros
  • Relaxing and mentally stimulating
Features
Currently charting
Read full description

Welcome to Catdoku, where sudoku meets adorable felines! Embark on a journey through our specially crafted sudoku game, designed for cat lovers and puzzle enthusiasts alike. - Unique Gameplay: Replace traditional numbers with charming cats to fill the grid. It's sudoku like you've never played before! - Variety of Levels: Whether you're a beginner or a seasoned pro, we have something for you. Choose from 4x4, 6x6, or 9x9 grids to match your skill level. - Daily Puzzles: Challenge yourself with a new puzzle every day. Keep your brain sharp and your problem-solving skills on point. Catdoku is more than just a game; it's a delightful way to relax, challenge your mind, and indulge in your love for cats and puzzles. Ready to test your logic in the cutest way possible? Download now and let the fun begin!

About

Image Brain

Features
Read full description

Brain is the most complex and powerful human organ, however researcher findings repeatedly stated that most people could not fully utilise the maximum 100 percent of our brain function. Memorisation of substantial information greatly relates to knowledge and intelligence. Human ability to retain and recall huge volume of information at rapid speed is never a myth. Right brain is capable of bulk image visualisation especially in fast speed. Developing photographic memory with rapid flash cards is the most effective mnemonics for right brain. Image Brain provides photographic memory training program to boost Right Brain Photographic Memory in various ways.

Screenshots

Catdoku4 screens
Image Brain4 screens

Verdict

The call

The clearest difference is update cadence: Catdoku at every 3 weeks against Image Brain's every 7 months. Catdoku also leads on chart position (#196 vs unranked) and price ($1.99 vs $2.99). Image Brain's advantage is iOS requirement (11.0 vs 16.6). On ads, in-app purchases and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Catdoku costs $1.99 and Image Brain $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Catdoku ships an update every 3 weeks, Image Brain every 7 months. Both last shipped on October 27, 2026.

Scorecard4 real differences ยท 5 level
Catdoku versus Image Brain: the parameters behind the verdict, then further details
ParameterCatdokuImage Brain
Price$1.99 โ€” better$2.99
Positive reviews100.0% of reviewsโ€”
Update frequencyEvery 3 weeks โ€” betterEvery 7 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidโ€”
Best chart rank#196 โ€” betterโ€”
DevicesiPhone, iPadiPhone, iPad, iPod โ€” better
Requires iOS16.611.0 โ€” better
Further details โ€” not scored
Size55 MB12 MB
Age rating4+4+
DeveloperSergio MarinHamster Force Multimedia Ltd.

In-app purchases

None

Catdoku

No in-app purchases

None

Image Brain

No in-app purchases

Questions

Is Catdoku free?
Catdoku costs $1.99, with no in-app purchases.
Is Image Brain free?
Image Brain costs $2.99, with no in-app purchases.
Do Catdoku or Image Brain have ads?
Neither Catdoku nor Image Brain shows ads.
Which is updated more often, Catdoku or Image Brain?
Catdoku ships an update every 3 weeks, and Image Brain every 7 months. Most recently, Catdoku was updated on October 27, 2026 and Image Brain on October 27, 2026.

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