# QR Code Inspector vs NostrKey Web Extension

The clearest difference is update cadence: NostrKey Web Extension at monthly against QR Code Inspector's every 25 months. NostrKey Web Extension also leads on iOS requirement (16.0 vs 18.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

QR Code Inspector ships an update every 25 months, NostrKey Web Extension monthly. The most recent releases landed on September 27, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | QR Code Inspector | NostrKey Web Extension |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 25 months | **Monthly** |
| Size | 7 MB | 15 MB |
| Requires iOS | 18.6 | **16.0** |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Easy Simple Smart](https://appshunter.io/developer/1517332870) | [Humanjava Enterprises](https://appshunter.io/developer/922926155) |

## What reviewers say

### QR Code Inspector

[App page](https://appshunter.io/ios/app/qr-code-inspector/id6474573609)

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

**In-app purchases:** none


### NostrKey Web Extension

[App page](https://appshunter.io/ios/app/nostrkey-web-extension/id6759624317)

**Features:** Safari Extension, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is QR Code Inspector free?

QR Code Inspector is free to download, with no in-app purchases.

### Is NostrKey Web Extension free?

NostrKey Web Extension is free to download, with no in-app purchases.

### Do QR Code Inspector or NostrKey Web Extension have ads?

Neither QR Code Inspector nor NostrKey Web Extension shows ads.

### Which is updated more often, QR Code Inspector or NostrKey Web Extension?

QR Code Inspector ships an update every 25 months, and NostrKey Web Extension monthly. Most recently, QR Code Inspector was updated on September 27, 2026 and NostrKey Web Extension on October 14, 2026.

---

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