# Smart NFC vs WatchKey IoT

The clearest difference is device support: WatchKey IoT at 3 against Smart NFC's 1. On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Smart NFC sells 1 one-off in-app purchase and WatchKey IoT sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Smart NFC | WatchKey IoT |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Size | 51 MB | 9 MB |
| Requires iOS | **17.0** | 17.6 |
| Devices | iPhone | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Remi Herbiet](https://appshunter.io/developer/1493980634) | [Stefaan Peter Degroote](https://appshunter.io/developer/1667392732) |

## What reviewers say

### Smart NFC

[App page](https://appshunter.io/ios/app/smart-nfc-read-and-write-tags/id6749724229)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| NFC Pro | $19.99 | one-time |


### WatchKey IoT

[App page](https://appshunter.io/ios/app/watchkey-iot/id6814319288)

**Features:** macOS Compatibility, Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Lifetime | $6.99 | one-time |


## Frequently asked questions

### Is Smart NFC free?

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

### Is WatchKey IoT free?

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

### Do Smart NFC or WatchKey IoT have ads?

Neither Smart NFC nor WatchKey IoT 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.*