# ISC DNS Checker vs Dynamic DNS

The clearest difference is iOS requirement: ISC DNS Checker at 9.0 against Dynamic DNS's 15.6. 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.

## The numbers

| Metric | ISC DNS Checker | Dynamic DNS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (1 ratings)](https://appshunter.io/ios/app/isc-dns-checker/id1141834002/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | — |
| Monetization | Free | — |
| Size | 19 MB | 21 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Internet Systems Consortium, Inc.](https://appshunter.io/developer/1115648879) | [Vladimir Gorkov](https://appshunter.io/developer/1698897421) |

## What reviewers say

### ISC DNS Checker

[App page](https://appshunter.io/ios/app/isc-dns-checker/id1141834002)

This application tests recursive DNS servers for compliance with current DNS protocol specifications, particularly EDNS(0). It can automatically detect your device's DNS servers or allow manual IP address input for testing. Both IPv4 and IPv6 are supported.

**Highlights:** Tests DNSSEC compliance, Tests EDNS(0) conformance, Automatic DNS server detection, Manual IP address input, IPv4 and IPv6 support

**Features:** macOS Compatibility

**In-app purchases:** none


### Dynamic DNS

[App page](https://appshunter.io/ios/app/dynamic-dns/id6761129064)

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

**In-app purchases:** none


## Frequently asked questions

### Is ISC DNS Checker free?

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

### Is Dynamic DNS free?

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

### Do ISC DNS Checker or Dynamic DNS have ads?

Neither ISC DNS Checker nor Dynamic DNS 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.*