# DNS Checker vs 1Cert

The clearest difference is in-app purchases: 1Cert at none against DNS Checker's 3. 1Cert also leads on ads (none vs shown) and iOS requirement (15.1 vs 17.6). DNS Checker's advantage is update cadence (every 4 weeks vs every 2 months). On price and device support there is nothing between them.

Both are free to download. DNS Checker sells 3 in-app purchases, starting at $2.99 per 7 days. 1Cert asks for nothing beyond the download.

DNS Checker ships an update every 4 weeks, 1Cert every 2 months. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | DNS Checker | 1Cert |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 4 weeks** | Every 2 months |
| Size | 13 MB | 31 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Muhammad Mujahid Khan](https://appshunter.io/developer/1749120554) | [SureHire Inc.](https://appshunter.io/developer/1581482923) |

## What reviewers say

### DNS Checker

[App page](https://appshunter.io/ios/app/dns-checker-ip-and-ssl-tools/id6752944260)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $2.99 | per 7 days |
| Monthly | $4.99 | per month |
| Yearly | $29.99 | per year |


### 1Cert

[App page](https://appshunter.io/ios/app/1cert/id6758375849)

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

**In-app purchases:** none


## Frequently asked questions

### Is DNS Checker free?

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

### Is 1Cert free?

1Cert is free to download, with no in-app purchases.

### Do DNS Checker or 1Cert have ads?

DNS Checker shows ads; 1Cert does not.

### Which is updated more often, DNS Checker or 1Cert?

DNS Checker ships an update every 4 weeks, and 1Cert every 2 months. Most recently, DNS Checker was updated on October 30, 2026 and 1Cert on November 5, 2026.

---

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