# SejlSikkert Alarm vs Glaecier

The clearest difference is update cadence: Glaecier at every 3 weeks against SejlSikkert Alarm's every 11 months. 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.

SejlSikkert Alarm ships an update every 11 months, Glaecier every 3 weeks. Both last shipped on October 21, 2026.

## The numbers

| Metric | SejlSikkert Alarm | Glaecier |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sejlsikkert-alarm/id1451966411/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 5 MB | 38 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Søfartsstyrelsen](https://appshunter.io/developer/482582313) | [Glaecier ApS](https://appshunter.io/developer/1719594992) |

## What reviewers say

### SejlSikkert Alarm

[App page](https://appshunter.io/ios/app/sejlsikkert-alarm/id1451966411)

This app allows maritime users to register vessels and plan journeys. It offers sail plan and track-only modes, with features like real-time location sharing, trip history, and emergency assistance calls. It also provides access to maritime information and personalized checklists.

**Highlights:** Vessel and journey registration, Sail plan and track-only modes, Real-time location sharing, Emergency and assistance calls, Trip history with video playback, Maritime information access, Personalized trip checklists

**Features:** macOS Compatibility

**In-app purchases:** none


### Glaecier

[App page](https://appshunter.io/ios/app/glaecier/id6569241195)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SejlSikkert Alarm free?

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

### Is Glaecier free?

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

### Do SejlSikkert Alarm or Glaecier have ads?

Neither SejlSikkert Alarm nor Glaecier shows ads.

### Which is updated more often, SejlSikkert Alarm or Glaecier?

SejlSikkert Alarm ships an update every 11 months, and Glaecier every 3 weeks. Most recently, SejlSikkert Alarm was updated on October 21, 2026 and Glaecier on October 21, 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.*