# OstSeeTiere vs Beach Explorer

The clearest difference is update cadence: Beach Explorer at every 3 months against OstSeeTiere's every 6 months. Beach Explorer also leads on iOS requirement (11.0 vs 18.6). 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.

OstSeeTiere ships an update every 6 months, Beach Explorer every 3 months. The most recent releases landed on June 24, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | OstSeeTiere | Beach Explorer |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 20.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 months** |
| Monetization | Free | — |
| Size | 2 MB | 127 MB |
| Requires iOS | 18.6 | **11.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Daniel Emden](https://appshunter.io/developer/761214887) | [Code for Nature](https://appshunter.io/developer/1829374322) |

## What reviewers say

### OstSeeTiere

[App page](https://appshunter.io/ios/app/ostseetiere/id943239243)

Report sightings and strandings of Baltic Sea marine mammals, including porpoises and seals. All submitted data is publicly displayed on an interactive map and scientifically analyzed to aid conservation efforts and research.

**Highlights:** Report marine mammal sightings, Report marine mammal strandings, Interactive map of sightings, Scientific data analysis, Supports conservation efforts, Information on porpoises and seals

**Features:** macOS Compatibility

**In-app purchases:** none


### Beach Explorer

[App page](https://appshunter.io/ios/app/beach-explorer/id974572507)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OstSeeTiere free?

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

### Is Beach Explorer free?

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

### Do OstSeeTiere or Beach Explorer have ads?

Neither OstSeeTiere nor Beach Explorer shows ads.

### Which is updated more often, OstSeeTiere or Beach Explorer?

OstSeeTiere ships an update every 6 months, and Beach Explorer every 3 months. Most recently, OstSeeTiere was updated on June 24, 2026 and Beach Explorer on September 20, 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.*