# SIMARINE vs Deutsche Hydrapro

The clearest difference is update cadence: SIMARINE at every 3 weeks against Deutsche Hydrapro's every 9 months. SIMARINE also leads on iOS requirement (12.2 vs 18.0). 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.

SIMARINE ships an update every 3 weeks, Deutsche Hydrapro every 9 months. The most recent releases landed on September 10, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | SIMARINE | Deutsche Hydrapro |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 8.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 9 months |
| Monetization | Free | — |
| Size | 120 MB | 31 MB |
| Requires iOS | **12.2** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [SIMARINE](https://appshunter.io/developer/1217159038) | [Deutsche Hydrapro](https://appshunter.io/developer/1731666423) |

## What reviewers say

### SIMARINE

[App page](https://appshunter.io/ios/app/simarine/id1587666762)

Monitor your boat's power consumption and tank levels with this application. Adjust settings and update your hardware remotely for seamless vessel management.

**Highlights:** Monitor power usage, Monitor tank levels, Adjust settings, Update hardware

**In-app purchases:** none


### Deutsche Hydrapro

[App page](https://appshunter.io/ios/app/deutsche-hydrapro/id6478074444)

**In-app purchases:** none


## Frequently asked questions

### Is SIMARINE free?

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

### Is Deutsche Hydrapro free?

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

### Do SIMARINE or Deutsche Hydrapro have ads?

Neither SIMARINE nor Deutsche Hydrapro shows ads.

### Which is updated more often, SIMARINE or Deutsche Hydrapro?

SIMARINE ships an update every 3 weeks, and Deutsche Hydrapro every 9 months. Most recently, SIMARINE was updated on September 10, 2026 and Deutsche Hydrapro on September 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.*