# ColdTempCorr vs LenoChat

The clearest difference is in-app purchases: LenoChat at none against ColdTempCorr's 2. LenoChat also leads on update cadence (monthly vs every 4 months) and iOS requirement (16.0 vs 18.6). On price, ads and device support there is nothing between them.

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

ColdTempCorr ships an update every 4 months, LenoChat monthly. The most recent releases landed on September 22, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | ColdTempCorr | LenoChat |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Monthly** |
| Monetization | Free with in-app purchases | — |
| Size | 4 MB | 26 MB |
| Requires iOS | 18.6 | **16.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [AeroKitPro LLC](https://appshunter.io/developer/1049063068) | [LenoChat](https://appshunter.io/developer/1810995172) |

## 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 |


### LenoChat

[App page](https://appshunter.io/ios/app/lenochat/id6745147914)

**In-app purchases:** none


## Frequently asked questions

### Is ColdTempCorr free?

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

### Is LenoChat free?

LenoChat is free to download, with no in-app purchases.

### Do ColdTempCorr or LenoChat have ads?

Neither ColdTempCorr nor LenoChat shows ads.

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

ColdTempCorr ships an update every 4 months, and LenoChat monthly. Most recently, ColdTempCorr was updated on September 22, 2026 and LenoChat 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.*