# IDA Union DK vs Onboard

The clearest difference is update cadence: Onboard at every 6 days against IDA Union DK's every 4 weeks. 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.

IDA Union DK ships an update every 4 weeks, Onboard every 6 days. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | IDA Union DK | Onboard |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 6 days** |
| Monetization | — | Free |
| Size | 76 MB | 131 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ingeniørforeningen Danmark](https://appshunter.io/developer/921534647) | [ZEAEYE ApS](https://appshunter.io/developer/1293652693) |

## What reviewers say

### IDA Union DK

[App page](https://appshunter.io/ios/app/ida-union-dk/id1245652846)

**Features:** macOS Compatibility

**In-app purchases:** none


### Onboard

[App page](https://appshunter.io/ios/app/onboard/id6448659680)

This app provides a comprehensive platform for water activities, offering weather forecasts, trip tracking, emergency calls, and safety zone information. It aims to enhance the safety and enjoyment of all water enthusiasts.

**Highlights:** Weather forecasts, Trip tracking, Emergency calls, Warning zone display, Maritime partner integrations

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

**In-app purchases:** none


## Frequently asked questions

### Is IDA Union DK free?

IDA Union DK is free to download, with no in-app purchases.

### Is Onboard free?

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

### Do IDA Union DK or Onboard have ads?

Neither IDA Union DK nor Onboard shows ads.

### Which is updated more often, IDA Union DK or Onboard?

IDA Union DK ships an update every 4 weeks, and Onboard every 6 days. Most recently, IDA Union DK was updated on October 29, 2026 and Onboard on October 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*