# WhenService vs MarinMaster

The clearest difference is in-app purchases: MarinMaster at none against WhenService's 1. MarinMaster also leads on device support (3 vs 1) and iOS requirement (15.1 vs 18.6). On price and ads there is nothing between them.

Both are free to download. WhenService sells 1 one-off in-app purchase. MarinMaster asks for nothing beyond the download.

## The numbers

| Metric | WhenService | MarinMaster |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 days | — |
| Size | 3 MB | 22 MB |
| Requires iOS | 18.6 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Bartosz Potmalnik](https://appshunter.io/developer/1866680341) | [Unyted](https://appshunter.io/developer/1784944517) |

## What reviewers say

### WhenService

[App page](https://appshunter.io/ios/app/whenservice/id6757406729)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| WhenService Lifetime Premium | $9.99 | one-time |


### MarinMaster

[App page](https://appshunter.io/ios/app/marinmaster/id6759584769)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is WhenService free?

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

### Is MarinMaster free?

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

### Do WhenService or MarinMaster have ads?

Neither WhenService nor MarinMaster shows ads.

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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.*