# Underground Merge vs 深海8000

The clearest difference is device support: Underground Merge at 3 against 深海8000's 1. Underground Merge also leads on iOS requirement (14.0 vs 17.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Underground Merge sells 9 one-off in-app purchases and 深海8000 sells 7 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Underground Merge ships an update every 5 days, 深海8000 every 11 days. The most recent releases landed on October 30, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | Underground Merge | 深海8000 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/underground-merge/id6745247309/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 5 days** | Every 11 days |
| Monetization | Free with in-app purchases | — |
| Size | 239 MB | 71 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 9+ | 4+ |
| Developer | [Pujia8 Limited](https://appshunter.io/developer/1436425196) | [Riki Kamei](https://appshunter.io/developer/1884951857) |

## What reviewers say

### Underground Merge

[App page](https://appshunter.io/ios/app/underground-merge/id6745247309)

Combine items to craft magical goods for adventurers and earn gold. Expand and decorate your unique underground hotel by unlocking new areas and decorations. Enjoy various engaging game modes.

**Highlights:** Combine items to create exotic goods, Fulfill adventurer orders for rewards, Unlock and decorate hotel areas, Engage in various gameplays, Earn gold and hexagrams

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ad-Free | $0.99 | one-time |
| Ad-Free | $1.99 | one-time |
| Resource Monthly Card | $4.99 | one-time |
| Treasure Chest Open Happy | $4.99 | one-time |
| Premium Pass | $4.99 | one-time |
| Ad-Free | $4.99 | one-time |
| Newcomer Special | $4.99 | one-time |
| Advanced Special | $6.99 | one-time |
| senior Special | $9.99 | one-time |


### 深海8000

[App page](https://appshunter.io/ios/app/8000/id6816334134)

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 資金チャージ | $1.99 | one-time |
| 初心者探索パック | $2.99 | one-time |
| 留守中収入2倍 | $2.99 | one-time |
| 水族館応援パック | $3.99 | one-time |
| 広告スキップ | $3.99 | one-time |
| 来館収入2倍 | $3.99 | one-time |
| 探索スタートセット | $4.99 | one-time |


## Frequently asked questions

### Is Underground Merge free?

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

### Is 深海8000 free?

深海8000 is free to download, with in-app purchases available.

### Do Underground Merge or 深海8000 have ads?

Both Underground Merge and 深海8000 show ads.

### Which is updated more often, Underground Merge or 深海8000?

Underground Merge ships an update every 5 days, and 深海8000 every 11 days. Most recently, Underground Merge was updated on October 30, 2026 and 深海8000 on November 10, 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.*