# Thermal Engineering Calc vs Pressure Unit Converter

The clearest difference is update cadence: Pressure Unit Converter at every 2 months against Thermal Engineering Calc's every 15 months. Pressure Unit Converter also leads on rating (5.0 vs 4.7) and review sentiment (67% vs 50%). Thermal Engineering Calc's advantage is ratings volume (6 vs 1) and price ($2.99 vs $3.99). On ads, in-app purchases, monetization model and device support there is nothing between them.

Thermal Engineering Calc costs $2.99 and Pressure Unit Converter $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Pressure Unit Converter holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Thermal Engineering Calc has 6 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 50% of Thermal Engineering Calc's written reviews are positive against 67% of Pressure Unit Converter's.

Thermal Engineering Calc ships an update every 15 months, Pressure Unit Converter every 2 months. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Thermal Engineering Calc | Pressure Unit Converter |
| --- | --- | --- |
| Price | **$2.99** | $3.99 |
| Rating | [4.7 (6 ratings)](https://appshunter.io/ios/app/thermal-engineering-calc/id684142208/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pressure-unit-converter/id1062000497/reviews)** |
| Number of ratings | **6** | 1 |
| Positive reviews | 50.0% of reviews | **66.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 2 months** |
| Monetization | Paid | Paid |
| Size | 3 MB | 23 MB |
| Requires iOS | 16.1 | **6.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [V PUGAZHENTHI](https://appshunter.io/developer/491898049) | [Intemodino Group s.r.o.](https://appshunter.io/developer/557849644) |

## 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


### Pressure Unit Converter

[App page](https://appshunter.io/ios/app/pressure-unit-converter/id1062000497)

Easily convert pressure measurements between various units with customizable rounding options for both decimal and fractional results. Save and email your conversion history for convenient record-keeping.

**Highlights:** Multiple pressure unit support, Decimal and fractional result display, Customizable rounding for decimals, Customizable fraction rounding, Conversion history, Email results and history, Portrait and landscape support

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Thermal Engineering Calc free?

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

### Is Pressure Unit Converter free?

Pressure Unit Converter costs $3.99, with no in-app purchases.

### Which has better reviews, Thermal Engineering Calc or Pressure Unit Converter?

Pressure Unit Converter is rated higher. Thermal Engineering Calc averages 4.7 out of 5 from 6 ratings, while Pressure Unit Converter averages 5.0 from 1 ratings.

### Do Thermal Engineering Calc or Pressure Unit Converter have ads?

Neither Thermal Engineering Calc nor Pressure Unit Converter shows ads.

### Which is updated more often, Thermal Engineering Calc or Pressure Unit Converter?

Thermal Engineering Calc ships an update every 15 months, and Pressure Unit Converter every 2 months. Most recently, Thermal Engineering Calc was updated on October 23, 2026 and Pressure Unit Converter on October 24, 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.*