# Puffy Techno Therm vs BioKey

The clearest difference is in-app purchases: Puffy Techno Therm at none against BioKey's 1. Puffy Techno Therm also leads on iOS requirement (11.0 vs 17.0). BioKey's advantage is device support. On price there is nothing between them.

Both are free to download. BioKey sells 1 one-off in-app purchase. Puffy Techno Therm asks for nothing beyond the download.

## The numbers

| Metric | Puffy Techno Therm | BioKey |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Size | 32 MB | 7 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | — | **iPhone, iPad** |
| Age rating | 17+ | 4+ |
| Developer | [YATAS YATAK VE YORGAN SANAYI TICARET ANONIM SIRKETI](https://appshunter.io/developer/1102181906) | [Ali izmirli](https://appshunter.io/developer/748620887) |

## What reviewers say

### Puffy Techno Therm

[App page](https://appshunter.io/ios/app/puffy-techno-therm/id6466154481)

**In-app purchases:** none


### BioKey

[App page](https://appshunter.io/ios/app/biokey/id6756682848)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| BioKey Premium | $0.99 | one-time |


## Frequently asked questions

### Is Puffy Techno Therm free?

Puffy Techno Therm is free to download, with no in-app purchases.

### Is BioKey free?

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

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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.*