# Door Key vs NFC

The clearest difference is in-app purchases: Door Key at none against NFC's 5. Door Key also leads on device support (3 vs 1) and iOS requirement (13.0 vs 17.0). NFC's advantage is update cadence (every 2 days vs every 5 weeks). On price and ads there is nothing between them.

Both are free to download. NFC sells 5 in-app purchases, starting at $5.99 per 7 days. Door Key asks for nothing beyond the download.

Door Key ships an update every 5 weeks, NFC every 2 days. The most recent releases landed on October 30, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | Door Key | NFC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.5 (2 ratings)](https://appshunter.io/ios/app/nfc-scanner-and-reader-tools/id6753283670/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 2 days** |
| Monetization | — | Free with in-app purchases |
| Size | 67 MB | 44 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [ECONDOS SISTEMAS LTDA - ME](https://appshunter.io/developer/1144142573) | [Vadym Tupitskyi](https://appshunter.io/developer/1843335747) |

## What reviewers say

### Door Key

[App page](https://appshunter.io/ios/app/door-key/id6752425863)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### NFC

[App page](https://appshunter.io/ios/app/nfc-scanner-and-reader-tools/id6753283670)

Transform your phone into a versatile NFC tool for reading, writing, and managing NFC tags. Easily access tag data, program smart tags for routines, and organize your scans with an intuitive interface. Ideal for both everyday users and professionals seeking efficient NFC interaction.

**Highlights:** Instant NFC tag reading, Simple tag writing (links, text, contacts), Automatic history log of scans, Intuitive and clean user interface, Broad compatibility with NFC devices, Suitable for everyday and professional use

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $5.99 | per 7 days |
| Premium | $5.99 | per 7 days |
| Premium | $14.99 | per month |
| Premium | $19.99 | per year |
| Premium | $39.99 | per year |


## Frequently asked questions

### Is Door Key free?

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

### Is NFC free?

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

### Do Door Key or NFC have ads?

Neither Door Key nor NFC shows ads.

### Which is updated more often, Door Key or NFC?

Door Key ships an update every 5 weeks, and NFC every 2 days. Most recently, Door Key was updated on October 30, 2026 and NFC on November 2, 2026.

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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.*