# H145 Flight Perfo vs Silextrack

The clearest difference is review sentiment: H145 Flight Perfo at 100% against Silextrack's 0%. H145 Flight Perfo also leads on monetization model (free vs subscription). Silextrack's advantage is update cadence (every 5 months vs every 33 months) and device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

H145 Flight Perfo ships an update every 33 months, Silextrack every 5 months. The most recent releases landed on October 12, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | H145 Flight Perfo | Silextrack |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 33 months | **Every 5 months** |
| Monetization | **Free** | Subscription |
| Size | 72 MB | 33 MB |
| Requires iOS | **14.0** | 15.1 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [AIRBUS HELICOPTERS](https://appshunter.io/developer/442021573) | [PHOTOSPACE](https://appshunter.io/developer/1516487069) |

## What reviewers say

### H145 Flight Perfo

[App page](https://appshunter.io/ios/app/h145-flight-perfo/id1389793869)

This application calculates helicopter performance for the BK117 D-2 and D-3 models. It computes various flight parameters based on user-defined conditions and helicopter configuration, ensuring safe and easy operation.

**Highlights:** BK117 D-2/D-3 performance calculation, User-defined flight conditions, Helicopter configuration settings, Maximum Takeoff/Landing Mass, Hover, Climb, Level flight calculations, Speed, Range, Endurance, Height-Velocity envelope

**In-app purchases:** none


### 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


## Frequently asked questions

### Is H145 Flight Perfo free?

H145 Flight Perfo is free to download, with no in-app purchases.

### Is Silextrack free?

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

### Do H145 Flight Perfo or Silextrack have ads?

Neither H145 Flight Perfo nor Silextrack shows ads.

### Which is updated more often, H145 Flight Perfo or Silextrack?

H145 Flight Perfo ships an update every 33 months, and Silextrack every 5 months. Most recently, H145 Flight Perfo was updated on October 12, 2026 and Silextrack on October 24, 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.*