# Roblox vs diep.io

The clearest difference is rating: Roblox at 4.5 against diep.io's 3.8. Roblox also leads on ads (none vs shown) and ratings volume (20M vs 20K). diep.io's advantage is in-app purchases (none vs 16). On price, device support and iOS requirement there is nothing between them.

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

Roblox holds the better App Store score, 4.5 against 3.8. That said, the two scores are not equally well evidenced: Roblox has 20M ratings behind it against 20K, 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 47% of diep.io's.

Roblox ships an update weekly, diep.io monthly. Both last shipped on September 24, 2026.

## The numbers

| Metric | Roblox | diep.io |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (20M ratings)](https://appshunter.io/ios/app/roblox/id431946152/reviews)** | [3.8 (20K ratings)](https://appshunter.io/ios/app/diepio/id1114751883/reviews) |
| Number of ratings | **20M** | 20K |
| Positive reviews | **60.0% of reviews** | 46.9% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Monthly |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Best chart rank | **#1** | — |
| Size | 224 MB | 17 MB |
| Requires iOS | 14.0 | **13.4** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 9+ |
| Developer | [Roblox Corporation](https://appshunter.io/developer/431946155) | [VexxusArts Ltd](https://appshunter.io/developer/1080798117) |

## What reviewers say

### Roblox

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

**Currently charting:** #1 Top Grossing · Action, #1 Top Grossing · Adventure, #2 Top Free · Action, #2 Top Free · Adventure, #4 Top Grossing · Games, #12 Top Free · Games, #22 Top Grossing, #88 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


### diep.io

[App page](https://appshunter.io/ios/app/diepio/id1114751883)

Engage in massive online multiplayer tank battles. Destroy blocks and other players to gain experience, level up your tank's stats, and upgrade to different classes. Dominate the leaderboard in this fast-paced action game optimized for mobile.

**Highlights:** Online multiplayer action, Dozens of players per game, Fast-paced tank warfare, Level up tank stats, Upgrade tank classes, Optimized for mobile controls

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Awesome game
- 👍 Great game
- 👍 Fun game
- 👍 Peak gamer game

**What reviewers complain about**

- 🐛 Bugs
- 🐛 Laggy
- 🐛 Unoptimized
- 🐛 Glitches
- 🐛 Crashes

**Reported bugs**

- Can't shoot when upgrading
- Upgrade menu disappears after ignoring
- Unresponsive upgrade menu
- Invisible tanks and bullets
- Teleporting tanks

**Requested features**

- Add more tanks
- Add more game modes
- Bring back mothership
- Add sandbox mode
- Add private servers


## Frequently asked questions

### Is Roblox free?

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

### Is diep.io free?

diep.io is free to download, with no in-app purchases.

### Which has better reviews, Roblox or diep.io?

Roblox is rated higher. Roblox averages 4.5 out of 5 from 20M ratings, while diep.io averages 3.8 from 20K ratings.

### Do Roblox or diep.io have ads?

diep.io shows ads; Roblox does not.

### Which is updated more often, Roblox or diep.io?

Roblox ships an update weekly, and diep.io monthly. Most recently, Roblox was updated on September 24, 2026 and diep.io on September 24, 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.*