# Silextrack vs Sofia VAC

The clearest difference is monetization model: Sofia VAC at free against Silextrack's subscription. Sofia VAC also leads on review sentiment (25% vs 0%). 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.

Silextrack ships an update every 5 months, Sofia VAC every 3 months. The most recent releases landed on September 17, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Silextrack | Sofia VAC |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | **25.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 months** |
| Monetization | Subscription | **Free** |
| Size | 33 MB | 25 MB |
| Requires iOS | **15.1** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [PHOTOSPACE](https://appshunter.io/developer/1516487069) | [DIR SERVICES DE NAVIGATION AERIENNE](https://appshunter.io/developer/1519391493) |

## What reviewers say

### Silextrack

[App page](https://appshunter.io/ios/app/silextrack/id1516487070)

Manage and analyze data from SILEX tracking beacons in real-time or retrospectively. Create objects and events, administer users and groups, and utilize various tools. This app requires a subscription to the dedicated platform.

**Highlights:** Real-time beacon tracking, Create objects and events, User and group administration, Web version functionalities, Owner server exploitation

**Features:** macOS Compatibility

**In-app purchases:** none


### Sofia VAC

[App page](https://appshunter.io/ios/app/sofia-vac/id1519391491)

This app provides access to French aeronautical information, including airfield details and dynamic VAC maps. Users can search for airfields by name or code, filter by runway characteristics, and download maps for offline use. It offers personalized map views with various airspace and navigational point overlays.

**Highlights:** Search airfields by name, ICAO code, or map, Filter airfields by runway length and surface, Consult dynamic VAC maps, Personalize map views with airspaces and VFR points, Download maps for offline access, Receive update notifications

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

**In-app purchases:** none


## Frequently asked questions

### Is Silextrack free?

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

### Is Sofia VAC free?

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

### Do Silextrack or Sofia VAC have ads?

Neither Silextrack nor Sofia VAC shows ads.

### Which is updated more often, Silextrack or Sofia VAC?

Silextrack ships an update every 5 months, and Sofia VAC every 3 months. Most recently, Silextrack was updated on September 17, 2026 and Sofia VAC on September 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.*