PORTSIDE FOS vs ColdTempCorr
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
ColdTempCorr
This professional aviation tool helps pilots calculate necessary cold temperature corrections for flight operations. It ensures compliance with aviation regulations by providing accurate altitude adjustments in cold weather, enhancing safety and efficiency.
- Cold temperature correction calculations
- ICAO PANS-OPS and FAA TERPS compliance
- Advanced atmospheric calculations
- Constant Descent Final Approach planning
- Air data conversions
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Cold Temperature Corrections – Professional Aviation Tool When outside air temperature is colder than ISA, an aircraft’s true altitude is lower than the indicated altitude—reducing terrain and obstacle clearance. To mitigate this risk, regulations require pilots to apply cold temperature corrections. The Cold Temp App streamlines this process with fast, accurate calculations based on the ICAO Cold Temperature Correction Table or precise engineering equations, ensuring compliance with ICAO PANS-OPS and FAA TERPS. In its latest revision, the app has been enhanced with additional modules: • ATMOS Module – Advanced atmospheric calculations, ISA parameters, and air data conversions. • CDFA Module – Constant Descent Final Approach planning with integrated cold temperature corrections. With expanded capabilities, regulatory compliance, and operational accuracy, the Cold Temp App is an essential professional tool for safe and efficient flight operations in cold-weather environments. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: PORTSIDE FOS at none against ColdTempCorr's 2. PORTSIDE FOS also leads on iOS requirement (15.6 vs 18.6). On price, review sentiment, update cadence and ads 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. ColdTempCorr sells 2 in-app purchases, starting at $2.99 per 3 months. PORTSIDE FOS asks for nothing beyond the download.
Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.
| Parameter | PORTSIDE FOS | ColdTempCorr |
|---|---|---|
| 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 4 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 18.6 |
| Further details — not scored | ||
| Size | 269 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Portside, Inc. | AeroKitPro LLC |
Customer experience
PORTSIDE FOS
ColdTempCorr
In-app purchases
PORTSIDE FOS
No in-app purchases
ColdTempCorr
- 3 Months subscription1 Month trial$2.993 Months
- One year subscription1 Month trial$9.991 Year
Questions
Is PORTSIDE FOS free?
Is ColdTempCorr free?
Do PORTSIDE FOS or ColdTempCorr have ads?
Which is updated more often, PORTSIDE FOS or ColdTempCorr?
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