# ISC DNS Checker vs DNSwitch

The clearest difference is rating: DNSwitch at 5.0 against ISC DNS Checker's 3.0. DNSwitch also leads on update cadence (weekly vs every 15 months). ISC DNS Checker's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, ratings volume and device support there is nothing between them.

Both are free to download. DNSwitch sells 1 one-off in-app purchase. ISC DNS Checker asks for nothing beyond the download.

DNSwitch holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

ISC DNS Checker ships an update every 15 months, DNSwitch weekly. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | ISC DNS Checker | DNSwitch |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (1 ratings)](https://appshunter.io/ios/app/isc-dns-checker/id1141834002/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/dnswitch-dns-switcher/id6761527549/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 15 months | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 19 MB | 7 MB |
| Requires iOS | **9.0** | 26.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Internet Systems Consortium, Inc.](https://appshunter.io/developer/1115648879) | [LEE HAN HSIANG](https://appshunter.io/developer/1886592585) |

## 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


### DNSwitch

[App page](https://appshunter.io/ios/app/dnswitch-dns-switcher/id6761527549)

Easily change your device's DNS settings with a single tap. Supports custom DNS configurations including DoH and DoT. A Pro version unlocks advanced features like speed testing and removes ads.

**Highlights:** One-tap DNS switching, Custom DNS support (DoH, DoT), Add, edit, and delete custom DNS, DNS Speed Test (Pro), Ad-free experience (Pro)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| dnswitch pro | $0.99 | one-time |


## Frequently asked questions

### Is ISC DNS Checker free?

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

### Is DNSwitch free?

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

### Which has better reviews, ISC DNS Checker or DNSwitch?

DNSwitch is rated higher. ISC DNS Checker averages 3.0 out of 5 from 1 ratings, while DNSwitch averages 5.0 from 1 ratings.

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

DNSwitch shows ads; ISC DNS Checker does not.

### Which is updated more often, ISC DNS Checker or DNSwitch?

ISC DNS Checker ships an update every 15 months, and DNSwitch weekly. Most recently, ISC DNS Checker was updated on November 2, 2026 and DNSwitch on October 31, 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.*