iPreFlight3 vs Flight Document System
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iPreFlight3
This app helps pilots quickly calculate available payload and fuel for flights. It integrates runway analysis, weight and balance, and flight planning with weather data. Users can prepare flight books and releases, and share them with crew.
- Max Payload Estimator (MPE™)
- Runway Analysis (RWA)
- Weight and Balance (WB)
- Flight Planning with Fuel Calculation
- Flight Book preparation
- Flight Release generation and sharing
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Aircraft Performance Group (APG) has released an application for use on the iPad, which integrates their Runway Analysis (RWA) and Weight and Balance (WB) system with a flight planning module. The combination of these functions allows the user to easily and quickly calculate the available payload for a planned flight – this service is known as MPE™ (Max Payload Estimator). iPreFlight™, has been developed to run on the iPad using the latest iPad technology. iPreFlight™ is a first-of-a-kind product that requires minimum user input to quickly calculate the available payload for a given city pairing, considering takeoff/landing performance limitations, manufacturers WB requirements and flight planning constraints. The flight planning element utilizes manufacturer’s operational data, in conjunction with current forecast weather conditions to calculate the fuel required for the flight. The fuel calculation includes fuel burn (optimized for minimum fuel or time), reserve, alternate and holding fuel. In addition to including the RWA, WB and flight plan, iPreFlight™ allows the user to prepare a Flight Book, containing all textual and graphical weather products for the planned flight. The book may be prepared days in advance of the flight, stored on the iPad and can be automatically updated as products are revised. Approaching departure time the user can easily prepare a Flight Release, consolidating the RWA, WB, flight plan and weather products. The Flight Release may then be emailed, stored on the iPad and/or shared with another iPad, such as the other fight deck crewmembers’, by simply selecting the appropriate distribution method(s). iPreFlight consolidates several preflight functions into one program, not only ensuring accurate takeoff and landing performance limits and correct aircraft loading, but allows pilots to quickly calculate the available payload and fuel requirements for a flight. In addition, iPreflight™ allows pilots to make last minute adjustments with just a few keystrokes. The Flight Release may then be saved on the iPad for review in-flight and shared with the other crewmember, Application Requirements: To use this application you must be an existing APG customer having a Runway Analysis (Point Calculation) and Weight and Balance services account.
Flight Document System
This app provides a paperless solution for airlines and flight crews, allowing pilots to replace physical documents with electronic versions on their iPads. It supports various file types and offers features like document search, messaging, and offline access.
- Paperless document replacement
- Supports PDF, JPG, GIF, MP4, MOV
- Document search and favorites
- Admin messaging to crew
- Offline document access
- Night mode and full-screen view
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Paperless solution for Airlines and crew using EFB class 1, 2 (iPad). Flight Document System allows pilots to replace many paper documents to electronic. FDS Features: - admin can allow/disallow to update documents via cellular; - user can specify files to update primarily; - launch documents inside FDS; - tracking EFB locations; - admin can send messages to EFB; - add documents to favorites; - search; - supported files: PDF, JPG, GIF, MP4, MOV; - PDF-file’s bookmarks support; - full support for the Russian language; - several files simultaneous downloading; - night mode; - user can set up english interface for FDS; - Full-screen view for documents; - admin can allow/disallow for EFB-user to open the document in a third-party application (Send to...); - admin can allow/disallow for EFB-user to send the document via e-mail; - admin can allow/disallow for EFB-user to print the document; - ability to set own start up wallpaper for each customer.
Verdict
The clearest difference is rating: Flight Document System at 5.0 against iPreFlight3's 3.1. Flight Document System also leads on iOS requirement (8.0 vs 16.0). iPreFlight3's advantage is ratings volume (55 vs 1) and update cadence (every 6 weeks vs every 6 months). On price, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Flight Document System holds the better App Store score, 5.0 against 3.1. That said, the two scores are not equally well evidenced: iPreFlight3 has 55 ratings behind it against 1, so its average is the more settled of the two.
iPreFlight3 ships an update every 6 weeks, Flight Document System every 6 months. The most recent releases landed on October 12, 2026 and October 1, 2026 respectively.
| Parameter | iPreFlight3 | Flight Document System |
|---|---|---|
| Price | Free | Free |
| Rating | 3.1 (55 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 5.0% of reviews | — |
| Number of ratings | 55 — better | 1 |
| Update frequency | Every 6 weeks — better | Every 6 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPad | iPad |
| Requires iOS | 16.0 | 8.0 — better |
| Further details — not scored | ||
| Size | 29 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Aircraft Performance Group, LLC | EFB-Software, LLC |
Customer experience
iPreFlight3
Flight Document System
In-app purchases
iPreFlight3
No in-app purchases
Flight Document System
No in-app purchases
Questions
Is iPreFlight3 free?
Is Flight Document System free?
Which has better reviews, iPreFlight3 or Flight Document System?
Do iPreFlight3 or Flight Document System have ads?
Which is updated more often, iPreFlight3 or Flight Document System?
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