# Cold Correct vs SubStandard

The clearest difference is review sentiment: Cold Correct at 100% against SubStandard's 0%. SubStandard's advantage is price (Free vs $0.99) and rating (5.0 vs 4.5). On ratings volume, ads, in-app purchases and device support there is nothing between them.

SubStandard is free to download; Cold Correct costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

SubStandard holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 2 and 2 respectively. Written reviews complicate that: 100% of Cold Correct's written reviews are positive against 0% of SubStandard's, so the app with the better star average is not the one people write more warmly about.

Cold Correct ships an update every 60 months, SubStandard every 7 months. The most recent releases landed on October 9, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Cold Correct | SubStandard |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [4.5 (2 ratings)](https://appshunter.io/ios/app/cold-correct/id1169832115/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/substandard/id1513656520/reviews)** |
| Number of ratings | 2 | 2 |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 60 months | **Every 7 months** |
| Monetization | Paid | **Free** |
| Size | 10 MB | 33 MB |
| Requires iOS | 16.4 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [SJR Ventures LLC](https://appshunter.io/developer/1169832114) | [iService Ottner Röck](https://appshunter.io/developer/1413717324) |

## What reviewers say

### Cold Correct

[App page](https://appshunter.io/ios/app/cold-correct/id1169832115)

Calculate temperature corrected altitude using data from aviation manuals. This utility helps pilots and aviation professionals adjust altitude readings based on cold temperature conditions.

**Highlights:** Temperature corrected altitude calculation, Uses AIM data, ICAO cold temperature correction table, Altitude adjustment for cold weather

**In-app purchases:** none


### SubStandard

[App page](https://appshunter.io/ios/app/substandard/id1513656520)

This aviation utility app simplifies applying cold temperature corrections for altitudes. It allows users to save frequently used altitude sets for rapid retrieval, enhancing efficiency in flight planning.

**Highlights:** Cold temperature corrections, Altitude set storage, Quick access to saved altitudes, Easy to use interface

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

**In-app purchases:** none


## Frequently asked questions

### Is Cold Correct free?

Cold Correct costs $0.99, with no in-app purchases.

### Is SubStandard free?

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

### Which has better reviews, Cold Correct or SubStandard?

SubStandard is rated higher. Cold Correct averages 4.5 out of 5 from 2 ratings, while SubStandard averages 5.0 from 2 ratings.

### Do Cold Correct or SubStandard have ads?

Neither Cold Correct nor SubStandard shows ads.

### Which is updated more often, Cold Correct or SubStandard?

Cold Correct ships an update every 60 months, and SubStandard every 7 months. Most recently, Cold Correct was updated on October 9, 2026 and SubStandard on October 6, 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.*