# Thermal Engineering Calc vs WeldOffice

The clearest difference is price: WeldOffice at Free against Thermal Engineering Calc's $2.99. WeldOffice also leads on update cadence (every 3 months vs every 15 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

WeldOffice is free to download; Thermal Engineering Calc costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Thermal Engineering Calc ships an update every 15 months, WeldOffice every 3 months. The most recent releases landed on August 22, 2026 and September 5, 2026 respectively.

## The numbers

| Metric | Thermal Engineering Calc | WeldOffice |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[4.7 (6 ratings)](https://appshunter.io/ios/app/thermal-engineering-calc/id684142208/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 3 months** |
| Monetization | Paid | — |
| Size | 3 MB | 20 MB |
| Requires iOS | **16.1** | 16.6 |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [V PUGAZHENTHI](https://appshunter.io/developer/491898049) | [ASMEIX CORPORATION](https://appshunter.io/developer/911716652) |

## What reviewers say

### Thermal Engineering Calc

[App page](https://appshunter.io/ios/app/thermal-engineering-calc/id684142208)

This app provides 44 calculators for thermal engineering parameters, along with thermodynamics tables, formulas, and definitions. It's a comprehensive tool for mechanical engineers and students needing to perform various thermal calculations.

**Highlights:** 44 thermal engineering calculators, Thermodynamics tables, Formulas and definitions, Carnot and Rankine efficiency calculators, Heat transfer calculations, Temperature conversion

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

**In-app purchases:** none


### WeldOffice

[App page](https://appshunter.io/ios/app/weldoffice/id6615075038)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Thermal Engineering Calc free?

Thermal Engineering Calc costs $2.99, with no in-app purchases.

### Is WeldOffice free?

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

### Do Thermal Engineering Calc or WeldOffice have ads?

Neither Thermal Engineering Calc nor WeldOffice shows ads.

### Which is updated more often, Thermal Engineering Calc or WeldOffice?

Thermal Engineering Calc ships an update every 15 months, and WeldOffice every 3 months. Most recently, Thermal Engineering Calc was updated on August 22, 2026 and WeldOffice on September 5, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*