# Mars vs Havenklap

The clearest difference is iOS requirement: Havenklap at 13.4 against Mars's 15.1. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Mars ships an update every 2 months, Havenklap every 3 months. The most recent releases landed on September 4, 2026 and May 16, 2026 respectively.

## The numbers

| Metric | Mars | Havenklap |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Size | 52 MB | 29 MB |
| Requires iOS | 15.1 | **13.4** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [COGN-It](https://appshunter.io/developer/1484445701) | [Havenbedrijf Antwerpen Nv van publiek recht](https://appshunter.io/developer/892396093) |

## What reviewers say

### Mars

[App page](https://appshunter.io/ios/app/mars-smmd/id1611535718)

**Features:** macOS Compatibility

**In-app purchases:** none


### Havenklap

[App page](https://appshunter.io/ios/app/havenklap/id1635135837)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Mars free?

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

### Is Havenklap free?

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

### Do Mars or Havenklap have ads?

Neither Mars nor Havenklap shows ads.

### Which is updated more often, Mars or Havenklap?

Mars ships an update every 2 months, and Havenklap every 3 months. Most recently, Mars was updated on September 4, 2026 and Havenklap on May 16, 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.*