# Gem Mining Robot vs DualGrid

The clearest difference is in-app purchases: DualGrid at none against Gem Mining Robot's 5. DualGrid also leads on update cadence (every 10 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. DualGrid asks for nothing beyond the download.

Gem Mining Robot ships an update every 5 weeks, DualGrid every 10 days. The most recent releases landed on October 8, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Gem Mining Robot | DualGrid |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 5 weeks | **Every 10 days** |
| Size | 8 MB | 114 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, Mac | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [AOBO Co.,Ltd](https://appshunter.io/developer/310846199) | [KENTO ADACHI](https://appshunter.io/developer/1710945555) |

## 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 |


### DualGrid

[App page](https://appshunter.io/ios/app/dualgrid/id6792704304)

**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 DualGrid free?

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

### Do Gem Mining Robot or DualGrid have ads?

Both Gem Mining Robot and DualGrid show ads.

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

Gem Mining Robot ships an update every 5 weeks, and DualGrid every 10 days. Most recently, Gem Mining Robot was updated on October 8, 2026 and DualGrid on October 4, 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.*