# ColdTempCorr vs KERoster

The clearest difference is review sentiment: KERoster at 83% against ColdTempCorr's 0%. KERoster also leads on in-app purchases (none vs 2) and update cadence (every 5 days vs every 4 months). ColdTempCorr's advantage is price (Free vs $0.49). On ads, device support and iOS requirement there is nothing between them.

ColdTempCorr is free to download; KERoster costs $0.49 up front. ColdTempCorr sells 2 in-app purchases, starting at $2.99 per 3 months. KERoster asks for nothing beyond the download.

ColdTempCorr ships an update every 4 months, KERoster every 5 days. The most recent releases landed on September 7, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | ColdTempCorr | KERoster |
| --- | --- | --- |
| Price | **Free** | $0.49 |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/keroster/id6741789054/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 0.0% of reviews | **83.3% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 5 days** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 4 MB | 5 MB |
| Requires iOS | 18.6 | **18.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [AeroKitPro LLC](https://appshunter.io/developer/1049063068) | [JUNGSUB YOON](https://appshunter.io/developer/1795609759) |

## What reviewers say

### ColdTempCorr

[App page](https://appshunter.io/ios/app/coldtempcorr/id1639003124)

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:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 3 Months subscription | $2.99 | per 3 months |
| One year subscription | $9.99 | per year |


### KERoster

[App page](https://appshunter.io/ios/app/keroster/id6741789054)

Easily input and view individual schedules by date or in a monthly calendar format. This app acts as a secondary calendar, displaying schedules as icons and allowing for detailed viewing, editing, and deletion. Additional flight-related functions will be added based on user feedback.

**Highlights:** Intuitive schedule input by date, Calendar view with schedule icons, Monthly calendar overview, Detailed schedule view, Schedule editing and deletion, List view of monthly schedules

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is ColdTempCorr free?

ColdTempCorr is free to download, with in-app purchases available.

### Is KERoster free?

KERoster costs $0.49, with no in-app purchases.

### Do ColdTempCorr or KERoster have ads?

Neither ColdTempCorr nor KERoster shows ads.

### Which is updated more often, ColdTempCorr or KERoster?

ColdTempCorr ships an update every 4 months, and KERoster every 5 days. Most recently, ColdTempCorr was updated on September 7, 2026 and KERoster on September 29, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*