# ErgoBlue vs Argendon

The clearest difference is in-app purchases: Argendon at none against ErgoBlue's 4. Argendon also leads on update cadence (every 2 months vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. ErgoBlue sells 4 in-app purchases, starting at $7.99 per month. Argendon asks for nothing beyond the download.

ErgoBlue ships an update every 4 months, Argendon every 2 months. The most recent releases landed on September 9, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | ErgoBlue | Argendon |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ergoblue/id1481779003/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Free with in-app purchases | — |
| Size | 1.7 GB | 32 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Aeronautical Data Systems Inc.](https://appshunter.io/developer/552304929) | [Alorair Solutions INC.](https://appshunter.io/developer/1521784250) |

## What reviewers say

### ErgoBlue

[App page](https://appshunter.io/ios/app/ergoblue/id1481779003)

This aviation app provides pilots with real-time ship location data and an automated distress messaging system for emergencies over water. It enhances situational awareness, reduces pilot workload, and aids in faster rescue operations.

**Highlights:** Real-time AIS ship position data, Automated voice distress message, Distress text data message via DSC, Reduces pilot task saturation, Increases pilot situational awareness, Assists with ditching procedures, Instrument approach to ditching

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Special Flight Safety Offer | $7.99 | per month |
| Ergo Blue Weekly Subscription | $49.99 | per 7 days |
| ErgoBlue Monthly Subscription | $87.99 | per month |
| ErgoBlue Yearly Subscription | $999.99 | per year |


### Argendon

[App page](https://appshunter.io/ios/app/argendon-c/id6476449862)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ErgoBlue free?

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

### Is Argendon free?

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

### Do ErgoBlue or Argendon have ads?

Neither ErgoBlue nor Argendon shows ads.

### Which is updated more often, ErgoBlue or Argendon?

ErgoBlue ships an update every 4 months, and Argendon every 2 months. Most recently, ErgoBlue was updated on September 9, 2026 and Argendon on September 26, 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.*