# Bubble Flat vs Rainbow Unicorn Puzzle

The clearest difference is iOS requirement: Bubble Flat at 6.0 against Rainbow Unicorn Puzzle's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Bubble Flat ships an update every 2 months, Rainbow Unicorn Puzzle every 6 weeks. The most recent releases landed on October 3, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Bubble Flat | Rainbow Unicorn Puzzle |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Size | 105 MB | 21 MB |
| Requires iOS | **6.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Vadim Shendrikov](https://appshunter.io/developer/969146966) | [Thanh Chung Phung Trieu](https://appshunter.io/developer/6790835825) |

## What reviewers say

### Bubble Flat

[App page](https://appshunter.io/ios/app/bubble-flat-bubble-blast/id1061536778)

**Features:** macOS Compatibility

**In-app purchases:** none


### Rainbow Unicorn Puzzle

[App page](https://appshunter.io/ios/app/rainbow-unicorn-puzzle/id6790994775)

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

**In-app purchases:** none


## Frequently asked questions

### Is Bubble Flat free?

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

### Is Rainbow Unicorn Puzzle free?

Rainbow Unicorn Puzzle is free to download, with no in-app purchases.

### Do Bubble Flat or Rainbow Unicorn Puzzle have ads?

Neither Bubble Flat nor Rainbow Unicorn Puzzle shows ads.

### Which is updated more often, Bubble Flat or Rainbow Unicorn Puzzle?

Bubble Flat ships an update every 2 months, and Rainbow Unicorn Puzzle every 6 weeks. Most recently, Bubble Flat was updated on October 3, 2026 and Rainbow Unicorn Puzzle on October 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.*