# PopGroup Lite vs Zero21 Card Game

PopGroup Lite and Zero21 Card Game both sit at 4.0 stars, but that hides the real split: 86% of PopGroup Lite's written reviews are positive against 0% of Zero21 Card Game's. PopGroup Lite also leads on ads (none vs shown) and update cadence (every 25 months vs every 65 months). Zero21 Card Game's advantage is ratings volume (3 vs 1). On price, rating, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.0 for PopGroup Lite against 4.0 for Zero21 Card Game. Both are backed by a comparable volume of ratings — 1 and 3 respectively. Written reviews are what separate them: 86% of PopGroup Lite's written reviews are positive against 0% of Zero21 Card Game's.

PopGroup Lite ships an update every 25 months, Zero21 Card Game every 65 months. The most recent releases landed on October 23, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | PopGroup Lite | Zero21 Card Game |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/popgroup-lite/id318975161/reviews) | [4.0 (3 ratings)](https://appshunter.io/ios/app/zero21-card-game/id1550265606/reviews) |
| Number of ratings | 1 | **3** |
| Positive reviews | **85.7% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 25 months** | Every 65 months |
| Monetization | **Free** | Ad-supported |
| Size | 1 MB | 58 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Tom Kerrigan](https://appshunter.io/developer/295445504) | [Le Nhung](https://appshunter.io/developer/1436505077) |

## What reviewers say

### PopGroup Lite

[App page](https://appshunter.io/ios/app/popgroup-lite/id318975161)

This game challenges you to pop groups of same-colored bubbles to achieve high scores. Strategic popping is key to forming larger groups and maximizing points. Enjoy a polished experience with customizable settings and online leaderboards.

**Highlights:** Classic 'samegame' puzzle mechanics, Crystal-clear graphics and animations, Customizable grid width, height, and colors, Online high score leaderboards, No in-app ads or purchases

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

**In-app purchases:** none


### Zero21 Card Game

[App page](https://appshunter.io/ios/app/zero21-card-game/id1550265606)

This number puzzle game challenges you to keep your score between 0 and 21 by collecting cards. Utilize power-up cards and strategic choices to navigate diverse levels and daily challenges. It's a fun, relaxing way to train your brain.

**Highlights:** Keep score between 0 and 21, Collect number cards, Use power-up cards, Unlock new card collections, Daily challenges, Diverse card layouts

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PopGroup Lite free?

PopGroup Lite is free to download, with no in-app purchases.

### Is Zero21 Card Game free?

Zero21 Card Game is free to download, with no in-app purchases.

### Which has better reviews, PopGroup Lite or Zero21 Card Game?

PopGroup Lite and Zero21 Card Game are both rated 4.0 out of 5 on the App Store, from 1 and 3 ratings respectively.

### Do PopGroup Lite or Zero21 Card Game have ads?

Zero21 Card Game shows ads; PopGroup Lite does not.

### Which is updated more often, PopGroup Lite or Zero21 Card Game?

PopGroup Lite ships an update every 25 months, and Zero21 Card Game every 65 months. Most recently, PopGroup Lite was updated on October 23, 2026 and Zero21 Card Game on October 14, 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.*