# Domain Inspector vs 1Cert

The clearest difference is in-app purchases: 1Cert at none against Domain Inspector's 1. Domain Inspector's advantage is update cadence (every 5 weeks vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Domain Inspector sells 1 one-off in-app purchase. 1Cert asks for nothing beyond the download.

Domain Inspector ships an update every 5 weeks, 1Cert every 3 months. The most recent releases landed on October 11, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Domain Inspector | 1Cert |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 3 months |
| Size | 24 MB | 31 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [akira ohmachi](https://appshunter.io/developer/1338624340) | [SureHire Inc.](https://appshunter.io/developer/1581482923) |

## What reviewers say

### Domain Inspector

[App page](https://appshunter.io/ios/app/domain-inspector/id6758211148)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


### 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 Domain Inspector free?

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

### Is 1Cert free?

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

### Do Domain Inspector or 1Cert have ads?

Neither Domain Inspector nor 1Cert shows ads.

### Which is updated more often, Domain Inspector or 1Cert?

Domain Inspector ships an update every 5 weeks, and 1Cert every 3 months. Most recently, Domain Inspector was updated on October 11, 2026 and 1Cert on October 5, 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.*