# Thermal Insulation Calculator vs UDiTH

The clearest difference is in-app purchases: UDiTH at none against Thermal Insulation Calculator's 1. UDiTH also leads on update cadence (monthly vs every 13 months). Thermal Insulation Calculator's advantage is iOS requirement (13.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Thermal Insulation Calculator sells 1 one-off in-app purchase. UDiTH asks for nothing beyond the download.

Thermal Insulation Calculator ships an update every 13 months, UDiTH monthly. The most recent releases landed on October 24, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Thermal Insulation Calculator | UDiTH |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (4 ratings)](https://appshunter.io/ios/app/thermal-insulation-calculator/id6738991204/reviews)** | — |
| Number of ratings | **4** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 13 months | **Monthly** |
| Monetization | Free with in-app purchases | — |
| Size | 57 MB | 243 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shital Gorasiya](https://appshunter.io/developer/1737199158) | [CAXperts GmbH](https://appshunter.io/developer/1095258162) |

## What reviewers say

### Thermal Insulation Calculator

[App page](https://appshunter.io/ios/app/thermal-insulation-calculator/id6738991204)

This tool simplifies complex thermal insulation estimations for professionals, students, and learners. It provides clear insights for planning and understanding insulation tasks with a user-friendly interface.

**Highlights:** Thermal insulation calculations, Estimation support, Educational insights, User-friendly interface, Beginner and professional support

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Purchase | $8.99 | one-time |


### UDiTH

[App page](https://appshunter.io/ios/app/udith/id6756059700)

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

**In-app purchases:** none


## Frequently asked questions

### Is Thermal Insulation Calculator free?

Thermal Insulation Calculator is free to download, with in-app purchases available.

### Is UDiTH free?

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

### Do Thermal Insulation Calculator or UDiTH have ads?

Neither Thermal Insulation Calculator nor UDiTH shows ads.

### Which is updated more often, Thermal Insulation Calculator or UDiTH?

Thermal Insulation Calculator ships an update every 13 months, and UDiTH monthly. Most recently, Thermal Insulation Calculator was updated on October 24, 2026 and UDiTH on October 4, 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.*