Refrigerant Identifier vs Mathematicus Parvus
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Refrigerant Identifier
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This new OzonAction video series consists of short instructional videos showing how to use and maintain a refrigerant identifier. The videos provide useful guidance on safety and best practice, understanding the difference between different identifier units, testing procedures and identification of results. It is intended for use by Montreal Protocol National Ozone Officers, Customs and Enforcement Officers as well as technicians involved in the servicing and maintenance of refrigeration and air-conditioning systems. The videos were produced by UN Environment Programme OzonAction in collaboration with Neutronics, Inc. and Unicorn B.V.
Mathematicus Parvus
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Mathematicus Parvus is an app to practice and encourage mental arithmetic. The app is easy to use and fully accessible using VoiceOver. Add and subtract to 10, 100 or 1000. Multiply and divide with numbers from 1 to 12. Fun auditory and visual effects. Don't hesitate to try the app for free.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Mathematicus Parvus sells 1 one-off in-app purchase. Refrigerant Identifier asks for nothing beyond the download.
| Parameter | Refrigerant Identifier | Mathematicus Parvus |
|---|---|---|
| Price | Free | Free |
| Update frequency | — | Every 6 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 9.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 22 MB | 1 MB |
| Age rating | 17+ | 4+ |
| Developer | UNEP | Kristof Nijs |
In-app purchases
Refrigerant Identifier
No in-app purchases
Mathematicus Parvus
- Purchase of the app$0.99
Questions
Is Refrigerant Identifier free?
Is Mathematicus Parvus free?
Do Refrigerant Identifier or Mathematicus Parvus have ads?
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