# Butter Side Up vs Bubble popop

The clearest difference is in-app purchases: Butter Side Up at none against Bubble popop's 1. Butter Side Up also leads on iOS requirement (15.1 vs 17.6). Bubble popop's advantage is ads (none vs shown) and update cadence (every 2 days vs every 6 days). On price and device support there is nothing between them.

Both are free to download. Bubble popop sells 1 in-app purchase, starting at $9.99 per year. Butter Side Up asks for nothing beyond the download.

Butter Side Up ships an update every 6 days, Bubble popop every 2 days. The most recent releases landed on November 9, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Butter Side Up | Bubble popop |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 6 days | **Every 2 days** |
| Size | 57 MB | 14 MB |
| Requires iOS | **15.1** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Efrain Romero](https://appshunter.io/developer/1868071569) | [毅黎 秦](https://appshunter.io/developer/1828721550) |

## What reviewers say

### Butter Side Up

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

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

**In-app purchases:** none


### Bubble popop

[App page](https://appshunter.io/ios/app/bubble-popop/id6757692930)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Annual Ultra-Super-Mega-Max VIP | $9.99 | per year |


## Frequently asked questions

### Is Butter Side Up free?

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

### Is Bubble popop free?

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

### Do Butter Side Up or Bubble popop have ads?

Butter Side Up shows ads; Bubble popop does not.

### Which is updated more often, Butter Side Up or Bubble popop?

Butter Side Up ships an update every 6 days, and Bubble popop every 2 days. Most recently, Butter Side Up was updated on November 9, 2026 and Bubble popop 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.*