# Refrigerant Identifier vs Mathematicus Parvus

The clearest difference is in-app purchases: Refrigerant Identifier at none against Mathematicus Parvus's 1. Refrigerant Identifier also leads on iOS requirement (9.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Mathematicus Parvus sells 1 one-off in-app purchase. Refrigerant Identifier asks for nothing beyond the download.

## The numbers

| Metric | Refrigerant Identifier | Mathematicus Parvus |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 6 months |
| Size | 22 MB | 1 MB |
| Requires iOS | **9.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [UNEP](https://appshunter.io/developer/1106793919) | [Kristof Nijs](https://appshunter.io/developer/1608072573) |

## What reviewers say

### Refrigerant Identifier

[App page](https://appshunter.io/ios/app/refrigerant-identifier/id1480592969)

**Features:** macOS Compatibility

**In-app purchases:** none


### Mathematicus Parvus

[App page](https://appshunter.io/ios/app/mathematicus-parvus/id1613162646)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Purchase of the app | $0.99 | one-time |


## Frequently asked questions

### Is Refrigerant Identifier free?

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

### Is Mathematicus Parvus free?

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

### Do Refrigerant Identifier or Mathematicus Parvus have ads?

Neither Refrigerant Identifier nor Mathematicus Parvus shows ads.

---

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