# BlueStone Expats vs MarinePumpDB

The clearest difference is update cadence: MarinePumpDB at weekly against BlueStone Expats's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

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

BlueStone Expats ships an update every 3 weeks, MarinePumpDB weekly. Both last shipped on October 6, 2026.

## The numbers

| Metric | BlueStone Expats | MarinePumpDB |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Size | 16 MB | 29 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Skeps B.V.](https://appshunter.io/developer/1606965434) | [AFLEX SHIPS EQUIPMENT PTE. LTD.](https://appshunter.io/developer/1868034232) |

## What reviewers say

### BlueStone Expats

[App page](https://appshunter.io/ios/app/bluestone-expats/id6742139915)

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

**In-app purchases:** none


### MarinePumpDB

[App page](https://appshunter.io/ios/app/marinepumpdb/id6757639717)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is BlueStone Expats free?

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

### Is MarinePumpDB free?

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

### Do BlueStone Expats or MarinePumpDB have ads?

Neither BlueStone Expats nor MarinePumpDB shows ads.

### Which is updated more often, BlueStone Expats or MarinePumpDB?

BlueStone Expats ships an update every 3 weeks, and MarinePumpDB weekly. Most recently, BlueStone Expats was updated on October 6, 2026 and MarinePumpDB on October 6, 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.*