Comparison

FMS 737 vs ColdTempCorr

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

FMS 737

This application provides a free-play simulation of the B737 Flight Management System. It's designed for training centers to help pilots familiarize themselves with the system before simulator sessions, offering an easy-to-use interface and comprehensive functions.

Highlights
  • B737 FMS simulation
  • Free play mode
  • Accurate simulation
  • Easy-to-use interface
  • Complete set of functions
  • Pilot familiarization tool
Features
Read full description

This app requires a user account provided by your Eca Faros representative. B737 Flight Management System Trainer is ECA Group solution to training centers’ need for B737 FMS familiarization tools. It offers a free play and accurate simulation, bringing a great added value before entering into simulators expensive sessions. Pilots’ transition to B737 complex flight management system is smoothly performed thanks to an easy-to-use interface and a complete set of available functions.

About

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.

Highlights
  • Cold temperature correction calculations
  • ICAO PANS-OPS and FAA TERPS compliance
  • Advanced atmospheric calculations
  • Constant Descent Final Approach planning
  • Air data conversions
Features
Read full description

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

ColdTempCorr4 screens

Verdict

The call

The clearest difference is review sentiment: FMS 737 at 50% against ColdTempCorr's 0%. FMS 737 also leads on in-app purchases (none vs 2). ColdTempCorr's advantage is update cadence (every 4 months vs every 10 months). On price, ads, device support and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. ColdTempCorr sells 2 in-app purchases, starting at $2.99 per 3 months. FMS 737 asks for nothing beyond the download.

UpkeepUpdate frequency

FMS 737 ships an update every 10 months, ColdTempCorr every 4 months. The most recent releases landed on October 24, 2026 and October 8, 2026 respectively.

Scorecard4 real differences · 6 level
FMS 737 versus ColdTempCorr: the parameters behind the verdict, then further details
ParameterFMS 737ColdTempCorr
PriceFreeFree
Rating3.0 (4 ratings) — better—
Positive reviews50.0% of reviews — better0.0% of reviews
Number of ratings4 — better—
Update frequencyEvery 10 monthsEvery 4 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPadiPhone, iPad — better
Requires iOS18.618.6
Further details — not scored
Size28 MB4 MB
Age rating4+4+
DeveloperECA FarosAeroKitPro LLC

Customer experience

FMS 737

All ratings4 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews2 reviews
Positive50.0%
Neutral50.0%
Negative0.0%

ColdTempCorr

Written reviews3 reviews
Positive0.0%
Neutral33.3%
Negative66.7%

In-app purchases

None

FMS 737

No in-app purchases

2 purchases

ColdTempCorr

Subscriptions2
  • 3 Months subscription1 Month trial$2.993 Months
  • One year subscription1 Month trial$9.991 Year

Questions

Is FMS 737 free?
FMS 737 is free to download, with no in-app purchases.
Is ColdTempCorr free?
ColdTempCorr is free to download, with in-app purchases available.
Do FMS 737 or ColdTempCorr have ads?
Neither FMS 737 nor ColdTempCorr shows ads.
Which is updated more often, FMS 737 or ColdTempCorr?
FMS 737 ships an update every 10 months, and ColdTempCorr every 4 months. Most recently, FMS 737 was updated on October 24, 2026 and ColdTempCorr on October 8, 2026.

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