# FDP FMS — Flight Duty Period Calculator

> Flight Duty Period Calculator (iPhone/iPad app by Arie Duister.)

- Source: https://appshunter.io/ios/app/fdp-fms/id6755888475 (this page in markdown: same URL + `.md`)
- Developer: [Arie Duister](https://appshunter.io/developer/1856967542)
- Category: Productivity, Reference
- Price: Free
- Age rating: 4+
- Requires: iOS 15.0 · 9 MB
- Languages: American English
- Released: 2025-11-30
- Data updated: 2026-05-20
- User reviews in markdown: https://appshunter.io/ios/app/fdp-fms/id6755888475/reviews.md

## What is FDP FMS?

FDP FMS is a flight planning tool designed for pilots to calculate and manage Flight Duty Periods (FDP) in compliance with EASA regulations.

Documents and routes included are specific to one airline, but  in general the app can be used by anyone that wants to calculate maximum EASA duty periods. 

   Features:
   - Calculate maximum FDP based on crew configuration
   - Automatic timezone conversions, auto selects DEPT airport.
   - OM-C block times integration
   - Offline functionality
   - Optimized for iPad portrait mode and iPhone in  landscape.
   - Follows device DAY/NIGHT theme.
   - Free, no information is shared outside your app. 

This app has been developed with care and in accordance with applicable EASA flight and duty time regulations. 
However, no guarantee is made regarding the accuracy or completeness of its calculations or information.
The developer is not liable for any incorrect planning outcomes or related operational or financial effects. 
Users remain solely responsible for verifying compliance with all relevant regulations and company policies.


## Version history (last 4 releases)

### 1.3 — 2026-01-09

• Fixed data entry issues for improved reliability
• Added OM-C reference display for quick flight time lookup
• Improved app stability when switching between apps

### 1.2 — 2026-01-09

What's New in Version 1.2:

• New OPS button provides direct access to operational resources
• Enhanced TAXI fields: TAXI OUT now supports full HH:MM format for accurate ground delay estimates
• Improved help tooltips with more reliable touch interaction throughout the app
• Refined copy data reports with better formatting and clearer time zone display
• Performance improvements and bug fixes for a smoother user experience

### 1.1 — 2025-12-27

Screen position and size changes. 
Bugs smashed.

### 1.0 — 2025-11-30

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-20.*