# Gem Mining Robot vs FlutteringMermaid game

The clearest difference is in-app purchases: FlutteringMermaid game at none against Gem Mining Robot's 5. FlutteringMermaid game also leads on update cadence (every 4 days vs every 5 weeks) and iOS requirement (15.0 vs 17.6). On price, ads and device support there is nothing between them.

Both are free to download. Gem Mining Robot sells 5 one-off in-app purchases. FlutteringMermaid game asks for nothing beyond the download.

Gem Mining Robot ships an update every 5 weeks, FlutteringMermaid game every 4 days. The most recent releases landed on October 8, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Gem Mining Robot | FlutteringMermaid game |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 75.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 5 weeks | **Every 4 days** |
| Monetization | — | Ad-supported |
| Size | 8 MB | 177 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, Mac | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [AOBO Co.,Ltd](https://appshunter.io/developer/310846199) | [SAYACHI-MARU GAMES](https://appshunter.io/developer/1809076905) |

## What reviewers say

### Gem Mining Robot

[App page](https://appshunter.io/ios/app/gem-mining-robot/id6705123550)

**Features:** Family Sharing, Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Level 2 | $0.99 | one-time |
| Level 3 | $0.99 | one-time |
| Level 4 | $0.99 | one-time |
| Level 5 | $0.99 | one-time |
| Level 6 | $0.99 | one-time |


### FlutteringMermaid game

[App page](https://appshunter.io/ios/app/flutteringmermaid-game/id6744722551)

This simulation app allows you to nurture a mystical mermaid from an egg, watching her grow and change within a serene underwater aquarium. Enjoy tranquil visuals, calming water sounds, and gentle gameplay designed for relaxation and short play sessions.

**Highlights:** Mermaid nurturing from egg to growth, Tranquil underwater aquarium visuals, Soothing ASMR water soundscapes, Idle gameplay with daily care, Evolving mermaid expressions, Short play sessions for relaxation

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

**In-app purchases:** none


## Frequently asked questions

### Is Gem Mining Robot free?

Gem Mining Robot is free to download, with in-app purchases available.

### Is FlutteringMermaid game free?

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

### Do Gem Mining Robot or FlutteringMermaid game have ads?

Both Gem Mining Robot and FlutteringMermaid game show ads.

### Which is updated more often, Gem Mining Robot or FlutteringMermaid game?

Gem Mining Robot ships an update every 5 weeks, and FlutteringMermaid game every 4 days. Most recently, Gem Mining Robot was updated on October 8, 2026 and FlutteringMermaid game on October 28, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*