Comparison

KakuroX vs ZOOKEEPER DX

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

Head to head
About

KakuroX

This app offers an endless supply of Sudoku and Kakuro puzzles for your iOS device. Enjoy a variety of sizes and difficulty levels, with boards generated on demand for unlimited gameplay.

Highlights
  • Unlimited Sudoku boards
  • Unlimited Kakuro boards
  • Customizable board sizes
  • Adjustable difficulty levels
  • On-demand board generation
Features
Read full description

KakuroX brings an unlimited number of Sudoku and Kakuro boards to your iPhone, iPod Touch or iPad. Kakuro is a numeric logic game in a similar style to Sudoku. KakuroX allows you to generate and play boards of various sizes and difficulties, and since it generates the boards on demand there is no limit to the number of games you can play.

About

ZOOKEEPER DX

Engage in a classic match-three puzzle game where you swap adjacent panels to line up three or more of the same color. Clear levels by catching a quota of animals, with multiple modes offering different challenges and scoring opportunities.

Highlights
  • Swap adjacent panels
  • Match three or more animals
  • Catch animals to clear levels
  • Normal Mode
  • Tokoton Mode (unlimited time)
  • Score Attack Mode (3-minute challenge)
  • Online multiplayer
Features
Read full description

10 million people are playing! Zoo Keeper, the definitive action puzzle game finally available for iPhone/iPad/iPod touch! Aim for it! The Best Opp Zookeeper! [game description] This is a simple puzzle game with a simple rule: swap two panels next to each other, and line up three or more panels of the same color to make them disappear. Touch the animal you want to move and slide it in the direction of the animal you want to replace. If you line up 3 or more same animals vertically or horizontally, you can catch the animal. The level is cleared when a quota of animals are caught. [mode description] *Normal Mode Catch more than your quota of animals to clear all levels! *Tokoton Mode Level up with 100 animals! This is a challenging mode with unlimited time. *Score Attack Mode Try to score as many points as possible in a 3-minute challenge in Fever mode! You will receive a time extension when you score over 10,000 points and 100,000 points. *Play Zoo Keeper Online Play Zoo Keeper online for free! (Link to App Store "ZOOKEEPER BATTLE".) [ranking description] You can participate in the ranking by logging into Game Center and using Leaderboards. Compete with players around the world for high scores! [System Requirements] iOS 11 or later; iPhone 5s or later, iPad 5th generation or later, iPod touch 6th generation or later

Screenshots

KakuroX3 screens
ZOOKEEPER DX4 screens

Verdict

The call

The clearest difference is rating: ZOOKEEPER DX at 3.7 against KakuroX's 3.2. ZOOKEEPER DX also leads on review sentiment (60% vs 45%) and ratings volume (43 vs 14). On price, update cadence, 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

KakuroX costs $0.99 and ZOOKEEPER DX $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

ZOOKEEPER DX holds the better App Store score, 3.7 against 3.2. Both are backed by a comparable volume of ratings — 14 and 43 respectively. Written reviews point the same way: 45% of KakuroX's written reviews are positive against 60% of ZOOKEEPER DX's.

UpkeepUpdate frequency

KakuroX ships an update every 2 months, ZOOKEEPER DX every 3 months. The most recent releases landed on October 13, 2026 and October 21, 2026 respectively.

Scorecard3 real differences · 7 level
KakuroX versus ZOOKEEPER DX: the parameters behind the verdict, then further details
ParameterKakuroXZOOKEEPER DX
Price$0.99$0.99
Rating3.2 (14 ratings)3.7 (43 ratings) — better
Positive reviews44.6% of reviews60.5% of reviews — better
Number of ratings1443 — better
Update frequencyEvery 2 months — betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.011.0
Further details — not scored
Size25 MB206 MB
Age rating4+4+
DeveloperFiendsoftKITERETSU INC.

Customer experience

KakuroX

All ratings14 ratings
Positive57.1%
Neutral0.0%
Negative42.9%
Written reviews56 reviews
Positive44.6%
Neutral12.5%
Negative42.9%

ZOOKEEPER DX

All ratings43 ratings
Positive58.1%
Neutral18.6%
Negative23.3%
Written reviews263 reviews
Positive60.5%
Neutral17.9%
Negative21.7%

Bugs and requests

KakuroX

Not enough reviews yet to summarise bugs or requests.

ZOOKEEPER DX

Reported bugs

4 issues
  • Game crashes on launch for some users
  • Leaderboards show impossible high scores
  • Pause function can be exploited
  • Inconsistent performance across devices

Requested features

5 requests
  • Add quest mode from DS version
  • Include time attack and other game modes
  • Allow disabling timer for casual play
  • Implement local high scores with names
  • Add colorblind accessibility options

In-app purchases

None

KakuroX

No in-app purchases

None

ZOOKEEPER DX

No in-app purchases

Questions

Is KakuroX free?
KakuroX costs $0.99, with no in-app purchases.
Is ZOOKEEPER DX free?
ZOOKEEPER DX costs $0.99, with no in-app purchases.
Which has better reviews, KakuroX or ZOOKEEPER DX?
ZOOKEEPER DX is rated higher. KakuroX averages 3.2 out of 5 from 14 ratings, while ZOOKEEPER DX averages 3.7 from 43 ratings.
Do KakuroX or ZOOKEEPER DX have ads?
Neither KakuroX nor ZOOKEEPER DX shows ads.
Which is updated more often, KakuroX or ZOOKEEPER DX?
KakuroX ships an update every 2 months, and ZOOKEEPER DX every 3 months. Most recently, KakuroX was updated on October 13, 2026 and ZOOKEEPER DX on October 21, 2026.

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