# Wärtsilä FOS Mobile vs Phoenix ESM

The clearest difference is update cadence: Phoenix ESM at every 6 weeks against Wärtsilä FOS Mobile'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.

Wärtsilä FOS Mobile ships an update every 11 months, Phoenix ESM every 6 weeks. The most recent releases landed on September 11, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Wärtsilä FOS Mobile | Phoenix ESM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/wartsila-fos-mobile/id1545576121/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 6 weeks** |
| Monetization | Free | — |
| Size | 17 MB | 51 MB |
| Requires iOS | **15.0** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Wartsila Voyage Sweden AB](https://appshunter.io/developer/398456165) | [SOUTH NESTS SOFTWARE SOLUTIONS AND PRIVATE LIMITED](https://appshunter.io/developer/1542763741) |

## What reviewers say

### Wärtsilä FOS Mobile

[App page](https://appshunter.io/ios/app/wartsila-fos-mobile/id1545576121)

This application provides shipping companies with real-time fleet information, including vessel status and tracking. Users can view an overview of all vessels or access in-depth details for individual ships, such as navigation and performance data.

**Highlights:** Fleet overview, Individual vessel details, Navigation information, Ship performance data, Vessel status tracking

**Features:** Vision Pro support

**In-app purchases:** none


### Phoenix ESM

[App page](https://appshunter.io/ios/app/phoenix-esm/id1664042418)

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

**In-app purchases:** none


## Frequently asked questions

### Is Wärtsilä FOS Mobile free?

Wärtsilä FOS Mobile is free to download, with no in-app purchases.

### Is Phoenix ESM free?

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

### Do Wärtsilä FOS Mobile or Phoenix ESM have ads?

Neither Wärtsilä FOS Mobile nor Phoenix ESM shows ads.

### Which is updated more often, Wärtsilä FOS Mobile or Phoenix ESM?

Wärtsilä FOS Mobile ships an update every 11 months, and Phoenix ESM every 6 weeks. Most recently, Wärtsilä FOS Mobile was updated on September 11, 2026 and Phoenix ESM on September 14, 2026.

---

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