# ColdTempCorr vs TopLog

The clearest difference is review sentiment: TopLog at 100% against ColdTempCorr's 0%. TopLog also leads on update cadence (weekly vs every 4 months). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. ColdTempCorr sells 2 in-app purchases, starting at $2.99 per 3 months and TopLog sells 3 in-app purchases, starting at $19.99 per month. Whichever you choose, the download price is not the number that matters.

ColdTempCorr ships an update every 4 months, TopLog weekly. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | ColdTempCorr | TopLog |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (10 ratings)](https://appshunter.io/ios/app/toplog-pilot-logbook-ai/id6756334477/reviews)** |
| Number of ratings | — | **10** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Weekly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 4 MB | 33 MB |
| Requires iOS | 18.6 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [AeroKitPro LLC](https://appshunter.io/developer/1049063068) | [Clear Signal](https://appshunter.io/developer/6792786198) |

## 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 |


### TopLog

[App page](https://appshunter.io/ios/app/toplog-pilot-logbook-ai/id6756334477)

Digitize your paper flight logbook with AI. Simply photograph your handwritten entries, and the app automatically extracts all flight details, creating accurate, searchable digital records. Ideal for pilots wanting to back up decades of flying or transition to digital logging.

**Highlights:** AI handwriting recognition, Automatic flight detail extraction, Review and confirm data, Searchable digital flight history, Digitize paper logbooks

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Logbook Pro - Monthly | $19.99 | per month |
| Logbook AI - Annual | $49.99 | per year |
| Logbook AI Pro - Annual | $99.99 | per year |


## Frequently asked questions

### Is ColdTempCorr free?

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

### Is TopLog free?

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

### Do ColdTempCorr or TopLog have ads?

Neither ColdTempCorr nor TopLog shows ads.

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

ColdTempCorr ships an update every 4 months, and TopLog weekly. Most recently, ColdTempCorr was updated on November 3, 2026 and TopLog on November 5, 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.*