# Roblox vs Zone 21

The clearest difference is in-app purchases: Zone 21 at none against Roblox's 16. Zone 21 also leads on review sentiment (83% vs 60%) and rating (4.8 vs 4.5). Roblox's advantage is ads (none vs shown) and update cadence (weekly vs every 3 months). On price and device support there is nothing between them.

Both are free to download. Roblox sells 16 in-app purchases, starting at $4.99 per month. Zone 21 asks for nothing beyond the download.

Zone 21 holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: Roblox has 20M ratings behind it against 23, so its average is the more settled of the two. Written reviews point the same way: 60% of Roblox's written reviews are positive against 83% of Zone 21's.

Roblox ships an update weekly, Zone 21 every 3 months. The most recent releases landed on September 25, 2026 and June 9, 2026 respectively.

## The numbers

| Metric | Roblox | Zone 21 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (20M ratings)](https://appshunter.io/ios/app/roblox/id431946152/reviews) | **[4.8 (23 ratings)](https://appshunter.io/ios/app/zone-21-fast-math-solitaire/id1484296990/reviews)** |
| Number of ratings | **20M** | 23 |
| Positive reviews | 60.0% of reviews | **83.3% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Every 3 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Best chart rank | **#1** | — |
| Size | 224 MB | 155 MB |
| Requires iOS | 14.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Roblox Corporation](https://appshunter.io/developer/431946155) | [CodeCube Brothers Partnership](https://appshunter.io/developer/415118511) |

## What reviewers say

### Roblox

[App page](https://appshunter.io/ios/app/roblox/id431946152)

**Currently charting:** #1 Top Free · Adventure, #1 Top Grossing · Action, #1 Top Grossing · Adventure, #2 Top Free · Action, #4 Top Grossing · Games, #8 Top Free · Games, #22 Top Grossing, #67 Top Free (US App Store)

Explore millions of immersive 3D multiplayer experiences created by a global community. Play games, roleplay, compete, or create your own virtual worlds. Customize avatars and connect with friends across various devices.

**Highlights:** Discover millions of user-created experiences, Create and share your own games, Customize avatars with clothing and accessories, Play with friends across multiple devices, Multiplayer battles and role-playing games, In-app chat and voice communication (age-verified)

**In-app purchases (16)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Roblox Premium 450 | $4.99 | per month |
| 80 ROBUX | $0.99 | one-time |
| Premium 80 Robux | $0.99 | one-time |
| Premium 88 Subscribed | $0.99 | one-time |
| Premium 160 Robux | $1.99 | one-time |
| Premium 240 Robux | $2.99 | one-time |
| Premium 320 Robux | $3.99 | one-time |
| 400 Robux Premium | $4.99 | one-time |
| 440 Robux Subscribed | $4.99 | one-time |
| Roblox Premium 450 One Month | $4.99 | one-time |
| 800 ROBUX | $9.99 | one-time |
| 800 Robux Premium | $9.99 | one-time |
| 880 Robux Subscribed | $9.99 | one-time |
| Roblox Premium 1000 One Month | $9.99 | one-time |
| 1700 Robux Premium | $19.99 | one-time |
| Roblox Premium 2200 One Month | $19.99 | one-time |

**What reviewers like**

- 🚀 Endless games and experiences
- 🤝 Ability to make virtual friends
- 🎨 Customizable avatars
- 🎮 Wide variety of game genres
- 👍 Fun and engaging for all ages

**What reviewers complain about**

- 🤖 Ineffective moderation and reporting system
- 💰 Expensive in-game purchases
- 🔍 Difficulty finding specific games
- 🤔 Confusing chat/tag system
- 🔒 Concerns about online safety and predators

**Reported bugs**

- Frequent disconnections and server issues
- Glitches that delete purchased items
- Inconsistent chat filtering and tagging

**Requested features**

- Ability to earn Robux through gameplay
- Improved search and discovery for games
- More free avatar customization options
- Better parental controls and monitoring
- Faster response to reports of inappropriate content


### Zone 21

[App page](https://appshunter.io/ios/app/zone-21-fast-math-solitaire/id1484296990)

A fast-paced card game where players aim to keep their card total between 0 and 21 to score points and win real-world rewards and cash prizes. Compete against others globally in timed multiplayer matches.

**Highlights:** Mathematical card game mechanics, Stay between 0 and 21, Win real cash prizes, Multiplayer challenges, Timed matches, Global leaderboards

**In-app purchases:** none


## Frequently asked questions

### Is Roblox free?

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

### Is Zone 21 free?

Zone 21 is free to download, with no in-app purchases.

### Which has better reviews, Roblox or Zone 21?

Zone 21 is rated higher. Roblox averages 4.5 out of 5 from 20M ratings, while Zone 21 averages 4.8 from 23 ratings.

### Do Roblox or Zone 21 have ads?

Zone 21 shows ads; Roblox does not.

### Which is updated more often, Roblox or Zone 21?

Roblox ships an update weekly, and Zone 21 every 3 months. Most recently, Roblox was updated on September 25, 2026 and Zone 21 on June 9, 2026.

---

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