# Idle Anomaly vs Change up!

The clearest difference is update cadence: Change up! at every 2 weeks against Idle Anomaly's every 5 weeks. Idle Anomaly's advantage is iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Idle Anomaly sells 10 one-off in-app purchases and Change up! sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Idle Anomaly ships an update every 5 weeks, Change up! every 2 weeks. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Idle Anomaly | Change up! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (364 ratings)](https://appshunter.io/ios/app/idle-anomaly-alien-control/id1630927796/reviews)** | — |
| Number of ratings | **364** | — |
| Positive reviews | 37.5% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 5 weeks | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 249 MB | 31 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Hot Siberians](https://appshunter.io/developer/1582606391) | [Heng Sheng Lee](https://appshunter.io/developer/6802169607) |

## What reviewers say

### 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 (10)**

| 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 |
| Starter pack | $9.99 | one-time |
| Researcher | $9.99 | one-time |
| 1200 Gems | $9.99 | one-time |
| No ads | $13.99 | one-time |
| Neat Pack | $19.99 | 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


### Change up!

[App page](https://appshunter.io/ios/app/change-up/id6807347088)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Currencies | $4.99 | one-time |


## Frequently asked questions

### Is Idle Anomaly free?

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

### Is Change up! free?

Change up! is free to download, with in-app purchases available.

### Do Idle Anomaly or Change up! have ads?

Both Idle Anomaly and Change up! show ads.

### Which is updated more often, Idle Anomaly or Change up!?

Idle Anomaly ships an update every 5 weeks, and Change up! every 2 weeks. Most recently, Idle Anomaly was updated on November 3, 2026 and Change up! on October 31, 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.*