# KNRM Helpt vs Previs Oostende

The clearest difference is iOS requirement: KNRM Helpt at 11.0 against Previs Oostende's 16.4. 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.

KNRM Helpt ships an update every 3 months, Previs Oostende every 2 months. The most recent releases landed on November 1, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | KNRM Helpt | Previs Oostende |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (1 ratings)](https://appshunter.io/ios/app/knrm-helpt/id940642344/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 72 MB | 56 MB |
| Requires iOS | **11.0** | 16.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Koninklijke Nederlandse Redding Maatschappij (KNRM)](https://appshunter.io/developer/940642343) | [Zeevissersfonds](https://appshunter.io/developer/1541991772) |

## What reviewers say

### KNRM Helpt

[App page](https://appshunter.io/ios/app/knrm-helpt/id940642344)

This app helps maritime adventurers plan and track their journeys. It allows users to register vessels, file trip plans with estimated arrival times and emergency contacts, and activate real-time location tracking. It also provides access to nautical maps, weather information, and safety data.

**Highlights:** Vessel registration, Sail Plan mode for trip planning, Track only mode for real-time tracking, Nautical maps and navigation, Location-based weather and water info, Maritime safety information, Emergency and assistance calls

**In-app purchases:** none


### Previs Oostende

[App page](https://appshunter.io/ios/app/previs-oostende/id1556061786)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is KNRM Helpt free?

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

### Is Previs Oostende free?

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

### Do KNRM Helpt or Previs Oostende have ads?

Neither KNRM Helpt nor Previs Oostende shows ads.

### Which is updated more often, KNRM Helpt or Previs Oostende?

KNRM Helpt ships an update every 3 months, and Previs Oostende every 2 months. Most recently, KNRM Helpt was updated on November 1, 2026 and Previs Oostende on October 25, 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.*