# Underground Blossom vs Diffworld

The clearest difference is price: Diffworld at Free against Underground Blossom's $2.99. Underground Blossom's advantage is ads (none vs shown) and chart position (#132 vs unranked). On update cadence and in-app purchases there is nothing between them.

Diffworld is free to download; Underground Blossom costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Underground Blossom ships an update weekly, Diffworld every 3 days. The most recent releases landed on October 24, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Underground Blossom | Diffworld |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[4.9 (4.4K ratings)](https://appshunter.io/ios/app/underground-blossom/id1665706687/reviews)** | — |
| Number of ratings | **4.4K** | — |
| Positive reviews | 97.5% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Weekly | **Every 3 days** |
| Monetization | Paid | — |
| Best chart rank | **#132** | — |
| Size | 196 MB | 27 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Rusty Lake](https://appshunter.io/developer/979777164) | [SUNGWOO JUNG](https://appshunter.io/developer/6793244122) |

## What reviewers say

### Underground Blossom

[App page](https://appshunter.io/ios/app/underground-blossom/id1665706687)

**Currently charting:** #132 Top Paid · Puzzle, #195 Top Paid · Adventure (US App Store)

Embark on a point-and-click adventure through the life and memories of Laura Vanderboom. Travel through metro stations, each representing a part of her past and future, solving puzzles to uncover her story and escape her inner turmoil.

**Highlights:** Point-and-click puzzle adventure, Journey through 7 unique metro stations, Solve puzzles and uncover secrets, Atmospheric soundtrack, Gripping story full of mysteries

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

**In-app purchases:** none

**What reviewers like**

- 👍 Engaging story
- 🎨 Beautiful artwork and atmosphere
- 🧠 Challenging yet satisfying puzzles
- 🔁 Seamless integration with previous Rusty Lake games
- 🕰️ Immersive time-traveling narrative

**What reviewers complain about**

- ⏱️ Relatively short gameplay length
- 🤔 Some puzzles felt too straightforward
- 🔀 Occasional difficulty in navigating between locations

**Reported bugs**

- Occasional language inconsistencies between stations
- Difficulty in backtracking to previous locations

**Requested features**

- More in-depth exploration of the Rusty Lake lore
- Longer and more complex puzzles
- Additional gameplay modes or mini-games


### Diffworld

[App page](https://appshunter.io/ios/app/diffworld-spot-the-difference/id6797232554)

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

**In-app purchases:** none


## Frequently asked questions

### Is Underground Blossom free?

Underground Blossom costs $2.99, with no in-app purchases.

### Is Diffworld free?

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

### Do Underground Blossom or Diffworld have ads?

Diffworld shows ads; Underground Blossom does not.

### Which is updated more often, Underground Blossom or Diffworld?

Underground Blossom ships an update weekly, and Diffworld every 3 days. Most recently, Underground Blossom was updated on October 24, 2026 and Diffworld on October 17, 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.*