# Robben.App Pro vs Baltic Water

The clearest difference is in-app purchases: Robben.App Pro at none against Baltic Water's 6. Robben.App Pro also leads on iOS requirement (16.4 vs 18.6). Baltic Water's advantage is update cadence (every 2 months vs every 5 months). On price, ads and device support there is nothing between them.

Both are free to download. Baltic Water sells 6 one-off in-app purchases. Robben.App Pro asks for nothing beyond the download.

Robben.App Pro ships an update every 5 months, Baltic Water every 2 months. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Robben.App Pro | Baltic Water |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Size | 46 MB | 5 MB |
| Requires iOS | **16.4** | 18.6 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Landesbetrieb fuer Kuestenschutz, Nationalpark und Meeresschutz Schleswig-Holstein](https://appshunter.io/developer/1705383767) | [Vadim Petruska](https://appshunter.io/developer/6799109109) |

## What reviewers say

### Robben.App Pro

[App page](https://appshunter.io/ios/app/robbenapp-pro/id6464050298)

**Features:** Vision Pro support

**In-app purchases:** none


### Baltic Water

[App page](https://appshunter.io/ios/app/baltic-water/id6799109107)

**Features:** iPhone Duo support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Drop | $0.99 | one-time |
| Just Because | $1.99 | one-time |
| Coffee | $8.99 | one-time |
| Lunch | $15.99 | one-time |
| Fuel Tank | $19.99 | one-time |
| Indulgence | $69.99 | one-time |


## Frequently asked questions

### Is Robben.App Pro free?

Robben.App Pro is free to download, with no in-app purchases.

### Is Baltic Water free?

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

### Do Robben.App Pro or Baltic Water have ads?

Neither Robben.App Pro nor Baltic Water shows ads.

### Which is updated more often, Robben.App Pro or Baltic Water?

Robben.App Pro ships an update every 5 months, and Baltic Water every 2 months. Most recently, Robben.App Pro was updated on October 25, 2026 and Baltic Water on October 31, 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.*