# Underlayer vs EML Forensic Viewer

The clearest difference is ads: EML Forensic Viewer at none against Underlayer's shown. EML Forensic Viewer also leads on update cadence (every 2 weeks vs every 5 months) and iOS requirement (13.0 vs 15.1). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Underlayer sells 1 in-app purchase, starting at $2.99 per 7 days and EML Forensic Viewer sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Underlayer ships an update every 5 months, EML Forensic Viewer every 2 weeks. The most recent releases landed on September 12, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | Underlayer | EML Forensic Viewer |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Every 2 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 169 MB | 120 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mihail Rukavishnikov](https://appshunter.io/developer/1648782212) | [Pleme PTY LTD.](https://appshunter.io/developer/1483378893) |

## What reviewers say

### Underlayer

[App page](https://appshunter.io/ios/app/underlayer/id6753363956)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $2.99 | per 7 days |


### 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 |


## Frequently asked questions

### Is Underlayer free?

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

### Is EML Forensic Viewer free?

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

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

Underlayer shows ads; EML Forensic Viewer does not.

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

Underlayer ships an update every 5 months, and EML Forensic Viewer every 2 weeks. Most recently, Underlayer was updated on September 12, 2026 and EML Forensic Viewer on September 13, 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.*