Comparison

Category Topic vs Speed Card Duel

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

Head to head
About

Category Topic

Engage in a cozy tile-sorting puzzle game where you match cute mahjong-style tiles to their correct categories. Explore diverse topics and categories, solve increasingly challenging puzzles, and train your brain with hundreds of levels.

Highlights
  • Mahjong-inspired tile sorting gameplay
  • Diverse topics and categories
  • Hundreds of brain-training levels
  • Cute, 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!

About

Speed Card Duel

Features
Read full description

SpeedDuel brings the classic card game Speed to iPhone and iPad. Play cards as quickly as you can and be the first to clear your hand and draw pile. HOW TO PLAY Play a card that is one rank higher or lower than either center card. Aces and Kings are connected. Tap or drag cards to the center piles and keep the action moving. FEATURES • Challenge the CPU across 20 difficulty levels • Play local two-player matches on the same device • Test your skills in 120-second Time Attack • Enjoy daily challenges • Track your results and collect card designs • Play in Japanese or English FREE TO PLAY SpeedDuel is free to play and may display banner and interstitial ads between matches. An optional one-time Remove Ads purchase permanently removes both ad formats. Eligible purchases can be restored. Sharpen your reflexes, challenge a friend, and see how fast you can play!

Screenshots

Category Topic4 screens
Speed Card Duel4 screens

Verdict

The call

The clearest difference is update cadence: Speed Card Duel at daily against Category Topic's every 8 days. Category Topic's advantage is iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases 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. Category Topic sells 10 one-off in-app purchases and Speed Card Duel sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Category Topic ships an update every 8 days, Speed Card Duel daily. Both last shipped on November 10, 2026.

Scorecard2 real differences · 8 level
Category Topic versus Speed Card Duel: the parameters behind the verdict, then further details
ParameterCategory TopicSpeed Card Duel
PriceFreeFree
Rating5.0 (185 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings185 — better—
Update frequencyEvery 8 daysDaily — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size405 MB10 MB
Age rating9+4+
DeveloperSAMZU LIMITEDMasafumi Ota

In-app purchases

10 purchases

Category Topic

One-time10
  • Coin Pack 1$1.99
  • Revive$4.99
  • No Ads Package 1$7.99
Show 7 more
  • Coin Pack 2$7.99
  • No Ads Package 2$9.99
  • No Ads Bundle$14.99
  • Coin Pack 3$14.99
  • Mega Bundle$19.99
  • Coin Pack 5$54.99
  • Coin Pack 6$99.99
1 purchases

Speed Card Duel

One-time1
  • Remove Ads$2.99

Questions

Is Category Topic free?
Category Topic is free to download, with in-app purchases available.
Is Speed Card Duel free?
Speed Card Duel is free to download, with in-app purchases available.
Do Category Topic or Speed Card Duel have ads?
Both Category Topic and Speed Card Duel show ads.
Which is updated more often, Category Topic or Speed Card Duel?
Category Topic ships an update every 8 days, and Speed Card Duel daily. Most recently, Category Topic was updated on November 10, 2026 and Speed Card Duel on November 10, 2026.

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