# Card Pop vs Category Topic

The clearest difference is in-app purchases: Card Pop at none against Category Topic's 13. Card Pop also leads on update cadence (every 4 days vs every 9 days). Category Topic's advantage is ratings volume (173 vs 36). On price, rating, ads and device support there is nothing between them.

Both are free to download. Category Topic sells 13 one-off in-app purchases. Card Pop asks for nothing beyond the download.

Category Topic holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 36 and 173 respectively.

Card Pop ships an update every 4 days, Category Topic every 9 days. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Card Pop | Category Topic |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (36 ratings)](https://appshunter.io/ios/app/card-pop-category-sort/id6787821707/reviews) | **[5.0 (173 ratings)](https://appshunter.io/ios/app/category-topic-mahjong-sort/id6794221849/reviews)** |
| Number of ratings | 36 | **173** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 4 days** | Every 9 days |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 383 MB | 377 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Sonat Technology Limited](https://appshunter.io/developer/1870470879) | [SAMZU LIMITED](https://appshunter.io/developer/1820834040) |

## What reviewers say

### Card Pop

[App page](https://appshunter.io/ios/app/card-pop-category-sort/id6787821707)

Engage in a satisfying card sorting puzzle where you organize cards into their correct categories. This game offers a relaxing experience with hundreds of levels, smooth animations, and brain-training logic. Perfect for quick breaks or extended play sessions.

**Highlights:** Satisfying card sort gameplay, Hundreds of levels, Smooth animations and relaxing sounds, Variety of boosters, Brain training with category logic, Perfect for short breaks

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Category Topic

[App page](https://appshunter.io/ios/app/category-topic-mahjong-sort/id6794221849)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (13)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coin Pack 1 | $1.99 | one-time |
| Revive | $4.99 | one-time |
| No Ads Package 1 | $7.99 | one-time |
| Coin Pack 2 | $7.99 | one-time |
| No Ads Package 2 | $9.99 | one-time |
| Mini Bundle | $9.99 | one-time |
| No Ads Bundle | $14.99 | one-time |
| Coin Pack 3 | $14.99 | one-time |
| Mega Bundle | $19.99 | one-time |
| Ultra Bundle | $29.99 | one-time |
| Coin Pack 4 | $29.99 | one-time |
| Coin Pack 5 | $54.99 | one-time |
| Coin Pack 6 | $99.99 | one-time |


## Frequently asked questions

### Is Card Pop free?

Card Pop is free to download, with no in-app purchases.

### Is Category Topic free?

Category Topic is free to download, with in-app purchases available.

### Which has better reviews, Card Pop or Category Topic?

Category Topic is rated higher. Card Pop averages 4.8 out of 5 from 36 ratings, while Category Topic averages 5.0 from 173 ratings.

### Do Card Pop or Category Topic have ads?

Both Card Pop and Category Topic show ads.

### Which is updated more often, Card Pop or Category Topic?

Card Pop ships an update every 4 days, and Category Topic every 9 days. Most recently, Card Pop was updated on October 24, 2026 and Category Topic on October 29, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*