# Fast Domain Search vs Diff Checker

The clearest difference is in-app purchases: Fast Domain Search at none against Diff Checker's 2. Fast Domain Search also leads on update cadence (daily vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Diff Checker sells 2 in-app purchases, starting at $2.99 per 7 days. Fast Domain Search asks for nothing beyond the download.

Fast Domain Search ships an update daily, Diff Checker every 2 months. The most recent releases landed on October 28, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Fast Domain Search | Diff Checker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Daily** | Every 2 months |
| Size | 1 MB | 5 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Aananta Pty Ltd](https://appshunter.io/developer/1844730592) | [Phuc Pham](https://appshunter.io/developer/1893081423) |

## What reviewers say

### Fast Domain Search

[App page](https://appshunter.io/ios/app/fast-domain-search/id6753732539)

**Features:** macOS Compatibility

**In-app purchases:** none


### Diff Checker

[App page](https://appshunter.io/ios/app/diff-checker-text-compare/id6772266827)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $2.99 | per 7 days |
| Yearly | $14.99 | per year |


## Frequently asked questions

### Is Fast Domain Search free?

Fast Domain Search is free to download, with no in-app purchases.

### Is Diff Checker free?

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

### Do Fast Domain Search or Diff Checker have ads?

Neither Fast Domain Search nor Diff Checker shows ads.

### Which is updated more often, Fast Domain Search or Diff Checker?

Fast Domain Search ships an update daily, and Diff Checker every 2 months. Most recently, Fast Domain Search was updated on October 28, 2026 and Diff Checker on October 14, 2026.

---

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