# Farness vs Thermal Transmittance Calc

The clearest difference is price: Thermal Transmittance Calc at Free against Farness's $1.99. Thermal Transmittance Calc also leads on review sentiment (75% vs 38%) and iOS requirement (15.6 vs 18.6). Farness's advantage is in-app purchases (none vs 2) and ads (none vs shown). On rating, ratings volume, update cadence and device support there is nothing between them.

Thermal Transmittance Calc is free to download; Farness costs $1.99 up front. Thermal Transmittance Calc sells 2 one-off in-app purchases. Farness asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.0 for Farness against 4.1 for Thermal Transmittance Calc. Both are backed by a comparable volume of ratings — 13 and 10 respectively. Written reviews are what separate them: 38% of Farness's written reviews are positive against 75% of Thermal Transmittance Calc's.

Farness ships an update every 6 months, Thermal Transmittance Calc every 11 months. The most recent releases landed on October 9, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Farness | Thermal Transmittance Calc |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | [4.0 (13 ratings)](https://appshunter.io/ios/app/farness/id918635264/reviews) | **[4.1 (10 ratings)](https://appshunter.io/ios/app/thermal-transmittance-calc/id1473745621/reviews)** |
| Number of ratings | **13** | 10 |
| Positive reviews | 37.5% of reviews | **75.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 6 months** | Every 11 months |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 2 MB | 119 MB |
| Requires iOS | 18.6 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Apperdashery LLC](https://appshunter.io/developer/491623821) | [ALEXEY KOZLOV](https://appshunter.io/developer/1393860478) |

## What reviewers say

### Farness

[App page](https://appshunter.io/ios/app/farness/id918635264)

Easily measure distances on a map by placing pins or drawing paths. Find total distances between locations, search for places, and save custom maps for later. Supports various map views and includes undo/redo functionality.

**Highlights:** Drop pins to mark locations, Draw paths with finger or Apple Pencil, Calculate total and intermediate distances, Search for locations, Save and share custom maps, View standard, hybrid, and satellite maps

**Features:** Vision Pro support

**In-app purchases:** none


### Thermal Transmittance Calc

[App page](https://appshunter.io/ios/app/thermal-transmittance-calc/id1473745621)

Calculate heat loss and humidity issues in building structures. Input air temperature, humidity, and material layers to visualize temperature and dew point changes. Supports both Celsius/Fahrenheit and cm/inches.

**Highlights:** Calculate heat loss, Identify humidity problems, Visualize temperature and dew point changes, Supports Celsius and Fahrenheit, Supports centimeters and inches, Easy data entry and immediate results

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |
| Creating a new material | $2.99 | one-time |


## Frequently asked questions

### Is Farness free?

Farness costs $1.99, with no in-app purchases.

### Is Thermal Transmittance Calc free?

Thermal Transmittance Calc is free to download, with in-app purchases available.

### Which has better reviews, Farness or Thermal Transmittance Calc?

Thermal Transmittance Calc is rated higher. Farness averages 4.0 out of 5 from 13 ratings, while Thermal Transmittance Calc averages 4.1 from 10 ratings.

### Do Farness or Thermal Transmittance Calc have ads?

Thermal Transmittance Calc shows ads; Farness does not.

### Which is updated more often, Farness or Thermal Transmittance Calc?

Farness ships an update every 6 months, and Thermal Transmittance Calc every 11 months. Most recently, Farness was updated on October 9, 2026 and Thermal Transmittance Calc on October 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.*