coolAltitude vs QuickColdAlt
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
coolAltitude
This app provides pilots with essential tools for cold-temperature altitude corrections, approach profiles, and de-icing calculations. It integrates weather data and offers a clear interface for critical flight planning information.
- Cold-temperature altitude corrections
- Approach profile visualization
- De-icing and holdover time calculations
- FMS-style approach setup
- METAR, TAF, and runway condition integration
- Light and dark mode support
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coolAltitude brings cold-temperature altitude corrections, approach profiles and de-icing tools into one focused workspace for pilots. ALTITUDE CORRECTIONS Enter the temperature and approach data, compare entered and corrected altitudes, and see the result in a clear approach profile. Select the correction method and rounding option for your workflow. DME shift helps put distance references in context. APPROACH SETUP Use the FMS-style interface to work with airport, runway and approach data. A structured display and dedicated keys keep the setup readable alongside the profile. DE-ICING AND HOLDOVER TIME Select the applicable conditions, fluid type and concentration. Review the available holdover guidance and keep the countdown visible during your workflow. WEATHER AND RUNWAY CONTEXT Consult METAR, TAF and runway-condition information alongside your calculations. Online information depends on the availability of the connected services. READABLE IN LIGHT AND DARK Clear colour roles distinguish inputs, corrected values and shifted values. Light and Dark appearances support different lighting conditions, with restrained surfaces and readable controls. Some features require an in-app subscription. Check the in-app purchase screen for the features included, subscription terms and current pricing. Use current operational information and the procedures applicable to your aircraft and operation when assessing results. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
QuickColdAlt
This utility calculates temperature and altitude corrections for flight operations. It offers a user-friendly interface for quick and reliable results, with a dark mode ideal for night flying. The app is completely free and ad-free.
- Temperature and altitude correction calculation
- User-friendly interface
- Fast results (under 10 seconds)
- Clear and reliable display
- Dark mode for night flights
- Completely free and ad-free
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**QuickColdAlt: The ultimate Cold Temperature Altitude Correction Calculator designed by an Airline Pilot.** - **Fast and Easy:** Calculate corrections in under 10 seconds with a simple and user-friendly interface. - **Clear and Reliable:** Accurate results are clearly displayed for your confidence. - **Perfect for Night Flights:** The default dark mode reduces eye strain, making it ideal for night operations. - **Always Free:** No cost, no ads—use it anytime, anywhere with peace of mind. With **QuickColdAlt**, save time, fly safer, and simplify your workflow. Download now and experience the difference! ( The airport data provided within the app serves as reference data only. If needed, it is recommended to manually input the desired airport elevation value. ) Visit our official website for more information : www.redswansoft.com App Credits & Licenses This app integrates various libraries and resources to deliver its features efficiently. The following libraries and resources are used: • mwgg/Airports: A JSON database of airports, provided under the MIT License. • Ionicons: Icons provided under the MIT License. • FontAwesome: Free icons provided under the Font Awesome Free License. • Google Fonts: Fonts provided under the Open Font License (OFL). Licenses This app complies with the licensing requirements of each resource. For example: • MIT License Permission is hereby granted, free of charge, to any person obtaining a copy of the software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. The software is provided “as is”, without warranty of any kind. • Open Font License (OFL) The fonts used in this app are free to use and distribute as long as they are not sold by themselves. Acknowledgment We deeply appreciate the creators and maintainers of these open-source libraries for enabling us to build a better app experience.
Screenshots
Verdict
The clearest difference is price: QuickColdAlt at Free against coolAltitude's $7.99. QuickColdAlt also leads on review sentiment (100% vs 60%) and in-app purchases (none vs 2). coolAltitude's advantage is ratings volume (7 vs 1). On rating, 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
QuickColdAlt is free to download; coolAltitude costs $7.99 up front. coolAltitude sells 2 in-app purchases, starting at $7.99 per year. QuickColdAlt asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for coolAltitude against 5.0 for QuickColdAlt. That said, the two scores are not equally well evidenced: coolAltitude has 7 ratings behind it against 1, so its average is the more settled of the two. Written reviews are what separate them: 60% of coolAltitude's written reviews are positive against 100% of QuickColdAlt's.
coolAltitude ships an update every 3 months, QuickColdAlt every 11 days. The most recent releases landed on November 7, 2026 and November 4, 2026 respectively.
| Parameter | coolAltitude | QuickColdAlt |
|---|---|---|
| Price | $7.99 | Free — better |
| Rating | 5.0 (7 ratings) | 5.0 (1 ratings) |
| Positive reviews | 60.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 7 — better | 1 |
| Update frequency | Every 3 months | Every 11 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 | 16.4 — better |
| Further details — not scored | ||
| Size | 56 MB | 40 MB |
| Age rating | 17+ | 4+ |
| Developer | SilkIdea s.r.o. | SEUNGSOO YOU |
Customer experience
coolAltitude
QuickColdAlt
In-app purchases
coolAltitude
- De & Anti-Icing Pro$7.991 Year
- Save & Retrieve Approach Data$7.991 Year
QuickColdAlt
No in-app purchases







