# ColdTempCorr vs TrueAlt

The clearest difference is price: ColdTempCorr at Free against TrueAlt's $4.99. TrueAlt's advantage is in-app purchases (none vs 2) and iOS requirement (16.4 vs 18.6). On update cadence, ads and device support there is nothing between them.

ColdTempCorr is free to download; TrueAlt costs $4.99 up front. ColdTempCorr sells 2 in-app purchases, starting at $2.99 per 3 months. TrueAlt asks for nothing beyond the download.

ColdTempCorr ships an update every 4 months, TrueAlt every 5 months. Both last shipped on September 7, 2026.

## The numbers

| Metric | ColdTempCorr | TrueAlt |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 5 months |
| Monetization | Free with in-app purchases | — |
| Size | 4 MB | 9 MB |
| Requires iOS | 18.6 | **16.4** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [AeroKitPro LLC](https://appshunter.io/developer/1049063068) | [Gonzalo Adolfo Garcia Held](https://appshunter.io/developer/1781072677) |

## 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 |


### TrueAlt

[App page](https://appshunter.io/ios/app/truealt/id6738508762)

**In-app purchases:** none


## Frequently asked questions

### Is ColdTempCorr free?

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

### Is TrueAlt free?

TrueAlt costs $4.99, with no in-app purchases.

### Do ColdTempCorr or TrueAlt have ads?

Neither ColdTempCorr nor TrueAlt shows ads.

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

ColdTempCorr ships an update every 4 months, and TrueAlt every 5 months. Most recently, ColdTempCorr was updated on September 7, 2026 and TrueAlt on September 7, 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.*