# Thermodynamic Cycles vs Graphiva

The clearest difference is in-app purchases: Graphiva at none against Thermodynamic Cycles's 4. Thermodynamic Cycles's advantage is device support (4 vs 2) and iOS requirement (15.0 vs 17.0). On price and ads there is nothing between them.

Both are free to download. Thermodynamic Cycles sells 4 one-off in-app purchases. Graphiva asks for nothing beyond the download.

## The numbers

| Metric | Thermodynamic Cycles | Graphiva |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Size | 50 MB | 2 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Angus Malcolm](https://appshunter.io/developer/834153229) | [Tinkercademy Community Showcase](https://appshunter.io/developer/1436937929) |

## 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 |


### Graphiva

[App page](https://appshunter.io/ios/app/graphiva/id6738349340)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Thermodynamic Cycles free?

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

### Is Graphiva free?

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

### Do Thermodynamic Cycles or Graphiva have ads?

Neither Thermodynamic Cycles nor Graphiva shows ads.

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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.*