PORTSIDE FOS vs Diagnostics Direct
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PORTSIDE FOS
This app provides aviation professionals with essential flight planning and scheduling tools on their mobile devices. Access aircraft schedules, crew duty times, flight logs, and trip details, with offline capabilities for use in flight. It integrates with desktop companion applications and international trip support services.
- Aircraft Schedules
- Trip and Leg Details
- Crew Duty Times
- Flight Log Entry
- Expense Submission
- Offline Airport Directory
- Weather and NOTAMs
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The new FOS Mobile App for iPhone and iPad brings all the essentials of scheduling and flight planning to your fingertips. A must have app for aviation professionals on the go. Works online and offline. FOS Mobile requires FOS companion desktop application (version 3.11.4 or later) and/or International Trip Support Services, provided by Rockwell Collins ARINCDirect Flight Services. Flight Operations System (FOS) on the go with access to: - Aircraft Schedules - Trip and Leg Details - Crew Duty times and Briefing - Flight log Entry - Expense Submission - Maintenance Item Visibility - Safety and Service Issues - Document Management - ARINCDirect Flight planning Integration - Flight Risk and Fatigue Integrations Tools Rockwell Collins International Trip Support including: - Trip Creation and Submission - Complete Trip Details - Access to Permits and Handling Information Included for the iPad is a Worldwide offline Airport Directory: - Lookup Airport information when offline in flight - Text weather (Metars, Tafs, Pireps, FD Winds, 7 day forecast) - Notams (all types) - Rockwell Collins Fuel Prices - Hotels (vendors/FBOS) - Local area information
Diagnostics Direct
This app provides aircraft technicians with a mobile solution for troubleshooting fault messages. It offers quick symptom searches and guided workflows to access top solutions, with a database updated based on field feedback.
- Fault isolation solution
- Troubleshoot fault messages
- Quick symptom search
- Intuitive workflows
- Dynamic database
- Field experience feedback
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The Diagnostics Direct app is a comprehensive fault isolation solution that helps Gulfstream aircraft technicians troubleshoot fault messages on the go. Quick symptom search and intuitive workflows give you easier access to top solutions. The dynamic database is continuously updated with field experience feedback to provide improved outcomes. For use with Gulfstream G550, GVII-G500/G600, G650/G650ER, GVIII-G700 aircraft.
Screenshots
Verdict
The clearest difference is update cadence: Diagnostics Direct at every 2 months against PORTSIDE FOS's every 4 months. On price, review sentiment, ads and in-app purchases 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.
PORTSIDE FOS ships an update every 4 months, Diagnostics Direct every 2 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.
| Parameter | PORTSIDE FOS | Diagnostics Direct |
|---|---|---|
| Price | Free | Free |
| Rating | 1.2 (48 ratings) — better | — |
| Positive reviews | 2.9% of reviews — better | 0.0% of reviews |
| Number of ratings | 48 — better | — |
| Update frequency | Every 4 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 269 MB | 60 MB |
| Age rating | 4+ | 4+ |
| Developer | Portside, Inc. | Veryon |
Customer experience
PORTSIDE FOS
Diagnostics Direct
In-app purchases
PORTSIDE FOS
No in-app purchases
Diagnostics Direct
No in-app purchases
Questions
Is PORTSIDE FOS free?
Is Diagnostics Direct free?
Do PORTSIDE FOS or Diagnostics Direct have ads?
Which is updated more often, PORTSIDE FOS or Diagnostics Direct?
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