# Thermodynamic Cycles vs PhysicsCalc

The clearest difference is device support: Thermodynamic Cycles at 4 against PhysicsCalc's 2. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Thermodynamic Cycles sells 4 one-off in-app purchases and PhysicsCalc sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on September 17, 2026 and July 31, 2026 respectively.

## The numbers

| Metric | Thermodynamic Cycles | PhysicsCalc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/physicscalc-126-formulas/id6761487165/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | — | Freemium |
| Size | 50 MB | 10 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Angus Malcolm](https://appshunter.io/developer/834153229) | [Rustam Elmuradov](https://appshunter.io/developer/1889905226) |

## What reviewers say

### Thermodynamic Cycles

[App page](https://appshunter.io/ios/app/thermodynamic-cycles/id834153226)

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Gas Power Cycles | $0.49 | one-time |
| Refrigeration Cycles | $0.49 | one-time |
| Vapor Power Cycles | $0.49 | one-time |
| Unlock All | $0.99 | one-time |


### PhysicsCalc

[App page](https://appshunter.io/ios/app/physicscalc-126-formulas/id6761487165)

This app provides a comprehensive collection of physics formulas, calculations, and solutions. It offers a unit converter, physical constants, and history of calculations, with advanced features like dependency graphs and error calculation available via a one-time purchase.

**Highlights:** 126 physics formulas, Smart calculation with instant results, Step-by-step solutions, Unit converter, Physical constants, Dependency graphs, Error calculator

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All Formulas | $1.99 | one-time |


## Frequently asked questions

### Is Thermodynamic Cycles free?

Thermodynamic Cycles is free to download, with in-app purchases available.

### Is PhysicsCalc free?

PhysicsCalc is free to download, with in-app purchases available.

### Do Thermodynamic Cycles or PhysicsCalc have ads?

Neither Thermodynamic Cycles nor PhysicsCalc shows ads.

### Which is updated more often, Thermodynamic Cycles or PhysicsCalc?

Thermodynamic Cycles ships an update every 3 months, and PhysicsCalc every 3 months. Most recently, Thermodynamic Cycles was updated on September 17, 2026 and PhysicsCalc on July 31, 2026.

---

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