# Roblox vs Idle Anomaly

The clearest difference is ads: Roblox at none against Idle Anomaly's shown. Roblox also leads on ratings volume (20M vs 364) and update cadence (weekly vs every 5 weeks). Idle Anomaly's advantage is rating (4.7 vs 4.5). On price, in-app purchases, monetization model 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 and Idle Anomaly sells 15 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Idle Anomaly holds the better App Store score, 4.7 against 4.5. That said, the two scores are not equally well evidenced: Roblox has 20M ratings behind it against 364, so its average is the more settled of the two. Written reviews complicate that: 60% of Roblox's written reviews are positive against 38% of Idle Anomaly's, so the app with the better star average is not the one people write more warmly about.

Roblox ships an update weekly, Idle Anomaly every 5 weeks. The most recent releases landed on September 26, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | Roblox | Idle Anomaly |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (20M ratings)](https://appshunter.io/ios/app/roblox/id431946152/reviews) | **[4.7 (364 ratings)](https://appshunter.io/ios/app/idle-anomaly-alien-control/id1630927796/reviews)** |
| Number of ratings | **20M** | 364 |
| Positive reviews | **60.0% of reviews** | 37.9% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Every 5 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | **#1** | — |
| Size | 224 MB | 249 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 9+ |
| Developer | [Roblox Corporation](https://appshunter.io/developer/431946155) | [Hot Siberians](https://appshunter.io/developer/1582606391) |

## 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 · Adventure, #3 Top Free · Action, #4 Top Grossing · Games, #10 Top Free · Games, #16 Top Grossing, #56 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


### Idle Anomaly

[App page](https://appshunter.io/ios/app/idle-anomaly-alien-control/id1630927796)

Build a research station to uncover the secrets of a mysterious alien Obelisk. Manage employees, defend your base from alien invaders, and upgrade heroes. Progress continues even when you're offline.

**Highlights:** Build and upgrade research station, Manage employees and monitor health, Defend base from alien attacks, Upgrade space heroes, Study UFOs and collect resources, Offline progress and idle earnings

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

**In-app purchases (15)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 80 Gems | $0.99 | one-time |
| Helicopter. | $4.99 | one-time |
| 500 Gems | $4.99 | one-time |
| Researcher | $4.99 | one-time |
| Johnny Goldhand | $4.99 | one-time |
| Beginner's Pack | $6.99 | one-time |
| Starter pack | $9.99 | one-time |
| Researcher | $9.99 | one-time |
| 1200 Gems | $9.99 | one-time |
| Dr. Massachusetts | $10.99 | one-time |
| No ads | $13.99 | one-time |
| Professional's Pack | $13.99 | one-time |
| Neat Pack | $19.99 | one-time |
| 2500 Gems | $24.99 | one-time |
| All Inclusive Pack | $35.99 | one-time |

**What reviewers like**

- 👍 Good game overall
- 🎨 Great design scheme
- ✨ Items change looks
- 🧘 Calming gameplay
- 💡 Interesting and fun gameplay

**What reviewers complain about**

- 📉 New update makes it dip
- 💸 Hero upgrades too expensive
- 🐛 Ads still present after purchase
- 💸 In-game purchases not received
- ⏳ Purchases don't take effect

**Reported bugs**

- Reset all data
- No ads upgrade not working
- Beginner pack not received
- In-app purchases not credited
- Game keeps locking up

**Requested features**

- Fix game issues or refund
- Add more content to the game
- Improve developer communication for future plans


## Frequently asked questions

### Is Roblox free?

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

### Is Idle Anomaly free?

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

### Which has better reviews, Roblox or Idle Anomaly?

Idle Anomaly is rated higher. Roblox averages 4.5 out of 5 from 20M ratings, while Idle Anomaly averages 4.7 from 364 ratings.

### Do Roblox or Idle Anomaly have ads?

Idle Anomaly shows ads; Roblox does not.

### Which is updated more often, Roblox or Idle Anomaly?

Roblox ships an update weekly, and Idle Anomaly every 5 weeks. Most recently, Roblox was updated on September 26, 2026 and Idle Anomaly on September 16, 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.*