# Thermodynamics Calculator vs DEGraphBlue

The clearest difference is price: DEGraphBlue at Free against Thermodynamics Calculator's $1.99. Thermodynamics Calculator's advantage is update cadence (every 7 months vs every 39 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

DEGraphBlue is free to download; Thermodynamics Calculator costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Thermodynamics Calculator ships an update every 7 months, DEGraphBlue every 39 months. The most recent releases landed on September 18, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Thermodynamics Calculator | DEGraphBlue |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[4.0 (30 ratings)](https://appshunter.io/ios/app/thermodynamics-calculator/id521684348/reviews)** | — |
| Number of ratings | **30** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 7 months** | Every 39 months |
| Monetization | Paid | — |
| Size | 11 MB | 4 MB |
| Requires iOS | 16.1 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | +4 | 4+ |
| Developer | [V PUGAZHENTHI](https://appshunter.io/developer/491898049) | [Dostmann electronic GmbH](https://appshunter.io/developer/1354949389) |

## What reviewers say

### Thermodynamics Calculator

[App page](https://appshunter.io/ios/app/thermodynamics-calculator/id521684348)

This app offers 44 essential thermodynamics calculators and thermal engineering tables. It provides quick access to formulas, definitions, and data, making it a valuable tool for engineers and students.

**Highlights:** 44 thermodynamics calculators, Thermal engineering tables, Formulas, tables, and definitions, Compatible with iPhone and iPad, Quick and easy reference

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

**In-app purchases:** none


### DEGraphBlue

[App page](https://appshunter.io/ios/app/degraphblue/id1354949394)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Thermodynamics Calculator free?

Thermodynamics Calculator costs $1.99, with no in-app purchases.

### Is DEGraphBlue free?

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

### Do Thermodynamics Calculator or DEGraphBlue have ads?

Neither Thermodynamics Calculator nor DEGraphBlue shows ads.

### Which is updated more often, Thermodynamics Calculator or DEGraphBlue?

Thermodynamics Calculator ships an update every 7 months, and DEGraphBlue every 39 months. Most recently, Thermodynamics Calculator was updated on September 18, 2026 and DEGraphBlue on September 10, 2026.

---

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