# EML Forensic Viewer vs HeaderCheck

The clearest difference is update cadence: HeaderCheck at every 2 days against EML Forensic Viewer's every 2 weeks. EML Forensic Viewer's advantage is iOS requirement (13.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. EML Forensic Viewer sells 3 in-app purchases, starting at $2.99 per month and HeaderCheck sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

EML Forensic Viewer ships an update every 2 weeks, HeaderCheck every 2 days. The most recent releases landed on October 1, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | EML Forensic Viewer | HeaderCheck |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 2 days** |
| Monetization | Free with in-app purchases | — |
| Size | 120 MB | 2 MB |
| Requires iOS | **13.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Pleme PTY LTD.](https://appshunter.io/developer/1483378893) | [Nicholas McLarty](https://appshunter.io/developer/1572125539) |

## What reviewers say

### EML Forensic Viewer

[App page](https://appshunter.io/ios/app/eml-forensic-viewer/id6754493498)

Analyze EML files with this powerful forensic tool. Inspect email headers, metadata, attachments, and content locally for investigations and security analysis. Supports offline processing for maximum privacy.

**Highlights:** EML file opener, Email header viewer, Metadata extraction, Attachment analyzer, Offline analysis, SPF, DKIM, DMARC checker

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| EML Forensic Viewer Pro Monthly | $2.99 | per month |
| EML Forensic Viewer Pro Annual | $29.99 | per year |
| EML Lifetime Pro Access | $39.99 | one-time |


### HeaderCheck

[App page](https://appshunter.io/ios/app/headercheck/id6809026356)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| HeaderCheck Pro | $2.99 | one-time |


## Frequently asked questions

### Is EML Forensic Viewer free?

EML Forensic Viewer is free to download, with in-app purchases available.

### Is HeaderCheck free?

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

### Do EML Forensic Viewer or HeaderCheck have ads?

Neither EML Forensic Viewer nor HeaderCheck shows ads.

### Which is updated more often, EML Forensic Viewer or HeaderCheck?

EML Forensic Viewer ships an update every 2 weeks, and HeaderCheck every 2 days. Most recently, EML Forensic Viewer was updated on October 1, 2026 and HeaderCheck on October 3, 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.*