# DNS ugunsmūris vs HDSensor

The clearest difference is iOS requirement: HDSensor at 13.0 against DNS ugunsmūris's 16.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

DNS ugunsmūris ships an update every 4 months, HDSensor every 3 months. The most recent releases landed on October 1, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | DNS ugunsmūris | HDSensor |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 months** |
| Size | 10 MB | 30 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CERT.LV](https://appshunter.io/developer/1762580369) | [磊鑫 黄](https://appshunter.io/developer/1896745460) |

## What reviewers say

### DNS ugunsmūris

[App page](https://appshunter.io/ios/app/dns-ugunsmuris/id6633426996)

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

**In-app purchases:** none


### HDSensor

[App page](https://appshunter.io/ios/app/hdsensor/id6770826321)

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

**In-app purchases:** none


## Frequently asked questions

### Is DNS ugunsmūris free?

DNS ugunsmūris is free to download, with no in-app purchases.

### Is HDSensor free?

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

### Do DNS ugunsmūris or HDSensor have ads?

Neither DNS ugunsmūris nor HDSensor shows ads.

### Which is updated more often, DNS ugunsmūris or HDSensor?

DNS ugunsmūris ships an update every 4 months, and HDSensor every 3 months. Most recently, DNS ugunsmūris was updated on October 1, 2026 and HDSensor on October 7, 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.*