Comparison

Plen vs QuickColdAlt

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

Head to head
About

Plen

Track aircraft in real-time with live location updates. See planes as they fly and monitor weather conditions along their routes. Discover various types of aircraft with this intuitive radar tool.

Highlights
  • Real-time ADS-B tracking
  • Live aircraft location updates
  • Weather updates for flight paths
  • Discover different types of aircraft
  • Intuitive radar interface
Features
Read full description

Meet Plen. Plens are in the sky all around us. Track plens with Plen, find plens, see plens. All with Plen. Find fun plens, fast plens, slow plens. Plen. Key Features: Real-Time ADS-B Tracking: Plen location updated in real time. Weather Updates: Watch plens fly through sky poofs. Download Plen.

About

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.

Highlights
  • 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
Features
Read full description

**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

Plen3 screens
QuickColdAlt4 screens

Verdict

The call

Plen and QuickColdAlt are too close to call on the numbers: across 8 compared parameters — price, review sentiment, update cadence and ads among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Plen ships an update every 6 days, QuickColdAlt every 11 days. Both last shipped on November 4, 2026.

ScorecardNo meaningful differences
Plen versus QuickColdAlt: the parameters behind the verdict, then further details
ParameterPlenQuickColdAlt
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 6 days — betterEvery 11 days
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.016.4 — better
Further details — not scored
Size203 MB40 MB
Age rating4+4+
DeveloperAutomata Solutions Ltd.SEUNGSOO YOU

Customer experience

Plen

Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

QuickColdAlt

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Plen

No in-app purchases

None

QuickColdAlt

No in-app purchases

Questions

Is Plen free?
Plen is free to download, with no in-app purchases.
Is QuickColdAlt free?
QuickColdAlt is free to download, with no in-app purchases.
Do Plen or QuickColdAlt have ads?
Neither Plen nor QuickColdAlt shows ads.
Which is updated more often, Plen or QuickColdAlt?
Plen ships an update every 6 days, and QuickColdAlt every 11 days. Most recently, Plen was updated on November 4, 2026 and QuickColdAlt on November 4, 2026.

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