# Cellular Beast vs Butter Side Up

The clearest difference is in-app purchases: Butter Side Up at none against Cellular Beast's 6. Cellular Beast's advantage is iOS requirement (12.0 vs 15.1). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Cellular Beast sells 6 one-off in-app purchases. Butter Side Up asks for nothing beyond the download.

Cellular Beast ships an update every 9 days, Butter Side Up every 6 days. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Cellular Beast | Butter Side Up |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/cellular-beast/id6504751569/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 9 days | **Every 6 days** |
| Monetization | Free with in-app purchases | — |
| Size | 127 MB | 57 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [LITTLELIGHTS HONG KONG LIMITED](https://appshunter.io/developer/1753678377) | [Efrain Romero](https://appshunter.io/developer/1868071569) |

## What reviewers say

### Cellular Beast

[App page](https://appshunter.io/ios/app/cellular-beast/id6504751569)

Engage in a unique tower defense experience set within the human body. Battle viruses with beneficial cells to heal patients and restore health from a microscopic viewpoint.

**Highlights:** Microscopic combat gameplay, Treating various illnesses, Cell vs. virus battles, Restoring patient health, Casual tower defense mechanics

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 60 antibiotics | $0.99 | one-time |
| 330 antibiotics | $4.99 | one-time |
| 720 antibiotics | $9.99 | one-time |
| 1480 antibiotics | $19.99 | one-time |
| 3780 antibiotics | $49.99 | one-time |
| 7580 antibiotics | $99.99 | one-time |


### Butter Side Up

[App page](https://appshunter.io/ios/app/butter-side-up/id6757652517)

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

**In-app purchases:** none


## Frequently asked questions

### Is Cellular Beast free?

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

### Is Butter Side Up free?

Butter Side Up is free to download, with no in-app purchases.

### Do Cellular Beast or Butter Side Up have ads?

Both Cellular Beast and Butter Side Up show ads.

### Which is updated more often, Cellular Beast or Butter Side Up?

Cellular Beast ships an update every 9 days, and Butter Side Up every 6 days. Most recently, Cellular Beast was updated on November 4, 2026 and Butter Side 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.*