# Cairn vs Bubble Pop

The clearest difference is in-app purchases: Bubble Pop at none against Cairn's 1. Cairn's advantage is ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Cairn sells 1 one-off in-app purchase. Bubble Pop asks for nothing beyond the download.

Cairn ships an update every 11 days, Bubble Pop every 2 weeks. The most recent releases landed on October 10, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Cairn | Bubble Pop |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.3 (4 ratings)](https://appshunter.io/ios/app/bubble-pop-color-splash/id6806953019/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 25.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 11 days** | Every 2 weeks |
| Monetization | — | Ad-supported |
| Size | 8 MB | 340 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Branko Borota](https://appshunter.io/developer/1228658475) | [PlayBliss](https://appshunter.io/developer/1865624724) |

## What reviewers say

### Cairn

[App page](https://appshunter.io/ios/app/cairn-stone-stack/id6782169883)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coffee | $1.99 | one-time |


### Bubble Pop

[App page](https://appshunter.io/ios/app/bubble-pop-color-splash/id6806953019)

A relaxing color-matching puzzle game where you strategically fire arrows to pop bubbles. Enjoy satisfying 3D animations and no time limits as you clear each board.

**Highlights:** Color-matching puzzle gameplay, Strategic arrow firing, No timers or move limits, Satisfying 3D bubble pops, Special pieces like trampolines and splitters, One-tap controls

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

**In-app purchases:** none


## Frequently asked questions

### Is Cairn free?

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

### Is Bubble Pop free?

Bubble Pop is free to download, with no in-app purchases.

### Do Cairn or Bubble Pop have ads?

Bubble Pop shows ads; Cairn does not.

### Which is updated more often, Cairn or Bubble Pop?

Cairn ships an update every 11 days, and Bubble Pop every 2 weeks. Most recently, Cairn was updated on October 10, 2026 and Bubble Pop on October 14, 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.*