# Textron Aviation Cesnav vs MyEngine

The clearest difference is monetization model: MyEngine at free against Textron Aviation Cesnav's subscription. MyEngine also leads on device support (3 vs 1) and iOS requirement (11.0 vs 13.0). Textron Aviation Cesnav's advantage is update cadence (every 4 months vs every 22 months). On price, rating, ratings volume and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for Textron Aviation Cesnav against 5.0 for MyEngine. Both are backed by a comparable volume of ratings — 3 and 3 respectively.

Textron Aviation Cesnav ships an update every 4 months, MyEngine every 22 months. The most recent releases landed on July 24, 2026 and June 11, 2026 respectively.

## The numbers

| Metric | Textron Aviation Cesnav | MyEngine |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/textron-aviation-cesnav/id517100985/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/myengine/id1024732816/reviews) |
| Number of ratings | 3 | 3 |
| Positive reviews | 42.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 22 months |
| Monetization | Subscription | **Free** |
| Size | 117 MB | 39 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Textron Inc.](https://appshunter.io/developer/499385834) | [Williams International Co., LLC](https://appshunter.io/developer/1024732815) |

## What reviewers say

### Textron Aviation Cesnav

[App page](https://appshunter.io/ios/app/textron-aviation-cesnav/id517100985)

This app integrates three specialized calculators for aviation professionals. It helps determine aircraft weight and balance, calculate takeoff and landing performance, and plan flight routes with fuel and time estimations. Results can be exported for onboard use.

**Highlights:** Aircraft-specific weight and balance calculation, Takeoff and landing performance analysis, Route planning with fuel and time estimation, Optimization based on cost and fuel, Exportable PDF reports, Support for various Citation models

**Features:** Vision Pro support

**In-app purchases:** none


### MyEngine

[App page](https://appshunter.io/ios/app/myengine/id1024732816)

This app facilitates the transfer of engine information files from an aircraft to a specific company. It offers two connection modes: one to acquire flight files from the aircraft and another to upload these files to the company's servers.

**Highlights:** Aircraft file acquisition, Transfer to Williams International, Two connection modes (Aircraft & WI), Automatic file transfer, Retry transfer functionality, Progress notifications

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Textron Aviation Cesnav free?

Textron Aviation Cesnav is free to download, with no in-app purchases.

### Is MyEngine free?

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

### Which has better reviews, Textron Aviation Cesnav or MyEngine?

Textron Aviation Cesnav and MyEngine are both rated 5.0 out of 5 on the App Store, from 3 and 3 ratings respectively.

### Do Textron Aviation Cesnav or MyEngine have ads?

Neither Textron Aviation Cesnav nor MyEngine shows ads.

### Which is updated more often, Textron Aviation Cesnav or MyEngine?

Textron Aviation Cesnav ships an update every 4 months, and MyEngine every 22 months. Most recently, Textron Aviation Cesnav was updated on July 24, 2026 and MyEngine on June 11, 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.*