Comparison

Solitaire Fish World vs Category Topic

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

Head to head
About

Solitaire Fish World

Features
Read full description

Play classic Solitaire, collect colorful fish, and build an aquarium that grows with every win. Solitaire Fish World brings together relaxing card gameplay and the simple joy of raising your own underwater world. Clear the cards, earn rewards, unlock new fish, and turn an empty tank into a lively aquarium full of personality. The rules are easy to pick up: choose a card that is one number higher or lower than the card in your hand. But as the levels progress, new card layouts, obstacles, and limited choices will make every move matter. Finish levels to meet new fish, improve their homes, and discover fresh aquarium themes. Some days you may want a quick game of Solitaire. Other days, you may find yourself staying a little longer just to unlock one more fish or complete the next part of your tank. Why You’ll Love Solitaire Fish World: ▶ Classic Solitaire with a relaxing aquarium theme ▶ Collect adorable fish with different colors and personalities ▶ Build and decorate beautiful underwater habitats ▶ Easy-to-learn card gameplay with satisfying strategic choices ▶ New levels, fish, and aquarium areas to discover ▶ A calm and rewarding experience you can enjoy at your own pace Key Features: ▶ Hundreds of handcrafted Solitaire levels ▶ Simple card rules with increasingly clever layouts ▶ Rewards that help you expand your aquarium ▶ Colorful underwater scenes and smooth animations ▶ Short levels that are perfect for quick breaks ▶ Offline play available anytime, anywhere Whether you enjoy classic Solitaire, collecting cute animals, or simply creating a peaceful place of your own, Solitaire Fish World gives you something to look forward to after every level. Play a card. Welcome a new fish. Build your underwater world. DOWNLOAD NOW and start your Solitaire aquarium adventure!

About

Category Topic

Engage in a relaxing tile-sorting puzzle game inspired by mahjong. Match cute tiles to their correct categories across a vast array of topics. Progress through challenging levels that test your planning and observation skills.

Highlights
  • Mahjong-inspired tile sorting gameplay
  • Diverse topics and categories
  • Hundreds of brain-training levels
  • Cute and colorful tile designs
  • Helpful boosters
  • Satisfying animations
Features
Read full description

Category Topic: Mahjong Sort is the cozy sort game where you sort cute tiles by category! Explore a colorful assortment of topics and categories, sort it into the right group, and become the ultimate sorter. Love mahjong and sort games? Start sorting now! Every tile belongs to a topic — animals, food, holidays, jobs, sports, vehicles, fantasy characters, and more. Look carefully, think ahead, and sort each mahjong tile into the matching category to clear the board one group at a time. It's a fresh mix of mahjong-style matching, category sorting, and brain-teasing puzzle fun. As you progress, the puzzles get trickier with new categories, limited spaces, and clever tile arrangements. If you can see a tile and instantly sort it where it belongs, the satisfying assortment of levels will keep you hooked. How To Play Tap a tile and sort it into the matching topic slot Group every tile in the same category to clear it Use empty spaces wisely to uncover hidden tiles Plan each move and sort smart before you run out of moves Clear all the categories to win the level! Features Relaxing mahjong-inspired tile sorting gameplay A huge assortment of topics, themes, and categories to master Hundreds of brain-training levels for every puzzle lover Cute, colorful tile designs and smooth, satisfying animations Helpful boosters to sort it out during tricky moments Become the fastest tile sorter with sharp eyes and smart planning Perfect for quick breaks or long, relaxing sort games sessions If you enjoy mahjong games, tile-matching games, sorting puzzles, or relaxing brain games, Category Topic: Mahjong Sort is made for you. Sort the tiles, match the topics, and become the #1 sorter in town. See a tile, sort it, and clear every category! Whether you're a casual player or a hardcore puzzle fan, this is one of the most satisfying sort games out there. Grab a colorful assortment of topics, train your brain, and start sorting today — download Category Topic: Mahjong Sort now!

Screenshots

Solitaire Fish World4 screens
Category Topic4 screens

Verdict

The call

Solitaire Fish World and Category Topic are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Solitaire Fish World sells 10 one-off in-app purchases and Category Topic sells 13 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Solitaire Fish World ships an update weekly, Category Topic fortnightly. The most recent releases landed on October 4, 2026 and October 16, 2026 respectively.

ScorecardNo meaningful differences
Solitaire Fish World versus Category Topic: the parameters behind the verdict, then further details
ParameterSolitaire Fish WorldCategory Topic
PriceFreeFree
Rating—5.0 (122 ratings) — better
Positive reviews—0.0% of reviews
Number of ratings—122 — better
Update frequencyWeekly — betterFortnightly
AdsYesYes
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size290 MB367 MB
Age rating4+9+
DeveloperMFT Entertainment LimitedSAMZU LIMITED

In-app purchases

10 purchases

Solitaire Fish World

One-time10
  • packscoin1$0.99
  • packscoin2$2.99
  • packscoin3$4.99
Show 7 more
  • packscoin4$9.99
  • normalcoin3$12.99
  • packscoin5$19.99
  • normalcoin4$24.99
  • packscoin6$39.99
  • normalcoin5$49.99
  • packscoin7$79.99
13 purchases

Category Topic

One-time13
  • Coin Pack 1$1.99
  • Revive$4.99
  • No Ads Package 1$7.99
Show 10 more
  • Coin Pack 2$7.99
  • No Ads Package 2$9.99
  • Mini Bundle$9.99
  • No Ads Bundle$14.99
  • Coin Pack 3$14.99
  • Mega Bundle$19.99
  • Ultra Bundle$29.99
  • Coin Pack 4$29.99
  • Coin Pack 5$54.99
  • Coin Pack 6$99.99

Questions

Is Solitaire Fish World free?
Solitaire Fish World is free to download, with in-app purchases available.
Is Category Topic free?
Category Topic is free to download, with in-app purchases available.
Do Solitaire Fish World or Category Topic have ads?
Both Solitaire Fish World and Category Topic show ads.
Which is updated more often, Solitaire Fish World or Category Topic?
Solitaire Fish World ships an update weekly, and Category Topic fortnightly. Most recently, Solitaire Fish World was updated on October 4, 2026 and Category Topic on October 16, 2026.

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