# FMS A350 vs Lae Logbook

The clearest difference is in-app purchases: FMS A350 at none against Lae Logbook's 2. FMS A350 also leads on update cadence (every 3 weeks vs every 2 months) and iOS requirement (14.0 vs 17.0). Lae Logbook's advantage is device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. Lae Logbook sells 2 in-app purchases, starting at $2.99 per month. FMS A350 asks for nothing beyond the download.

FMS A350 ships an update every 3 weeks, Lae Logbook every 2 months. The most recent releases landed on October 13, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | FMS A350 | Lae Logbook |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free | — |
| Size | 44 MB | 5 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [ECA Faros](https://appshunter.io/developer/1109979311) | [Kefis Technology Limited](https://appshunter.io/developer/1745041739) |

## What reviewers say

### FMS A350

[App page](https://appshunter.io/ios/app/fms-a350/id1179048028)

This application provides a free play simulation for familiarizing users with the A350 Flight Management System. It offers an easy-to-use interface and a comprehensive set of functions, adding value before expensive simulator sessions.

**Highlights:** A350 FMS familiarization, Free play simulation, Accurate simulation, Easy-to-use interface, Complete set of functions

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

**In-app purchases:** none


### Lae Logbook

[App page](https://appshunter.io/ios/app/lae-logbook/id6502331367)

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| LaeLogbook Pro Monthly | $2.99 | per month |
| LaeLogbook Pro Annual | $24.99 | per year |


## Frequently asked questions

### Is FMS A350 free?

FMS A350 is free to download, with no in-app purchases.

### Is Lae Logbook free?

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

### Do FMS A350 or Lae Logbook have ads?

Neither FMS A350 nor Lae Logbook shows ads.

### Which is updated more often, FMS A350 or Lae Logbook?

FMS A350 ships an update every 3 weeks, and Lae Logbook every 2 months. Most recently, FMS A350 was updated on October 13, 2026 and Lae Logbook on October 10, 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.*