# Viewer by SEPPmail vs Heldenlohn

The clearest difference is in-app purchases: Viewer by SEPPmail at none against Heldenlohn's 2. Viewer by SEPPmail also leads on iOS requirement (12.4 vs 15.0). Heldenlohn's advantage is update cadence (every 2 days vs every 13 months). On price, ads and device support there is nothing between them.

Both are free to download. Heldenlohn sells 2 in-app purchases, starting at $3.99 per month. Viewer by SEPPmail asks for nothing beyond the download.

Viewer by SEPPmail ships an update every 13 months, Heldenlohn every 2 days. The most recent releases landed on October 8, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Viewer by SEPPmail | Heldenlohn |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/viewer-by-seppmail/id6446402452/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 2 days** |
| Monetization | Free | — |
| Size | 19 MB | 37 MB |
| Requires iOS | **12.4** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SEPPmail AG](https://appshunter.io/developer/586785754) | [Sebastian Lierka](https://appshunter.io/developer/1880806968) |

## What reviewers say

### Viewer by SEPPmail

[App page](https://appshunter.io/ios/app/viewer-by-seppmail/id6446402452)

This application allows you to receive, decrypt, and read secure emails with "secure-email.html" attachments. It is designed for users who have received encrypted messages sent via a SEPPmail Appliance.

**Highlights:** Receive encrypted emails, Decrypt secure attachments, Read secure email content, Supports SEPPmail Appliance encryption

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

**In-app purchases:** none


### Heldenlohn

[App page](https://appshunter.io/ios/app/heldenlohn/id6798597166)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium - monthly | $3.99 | per month |
| Premium – yearly | $24.99 | per year |


## Frequently asked questions

### Is Viewer by SEPPmail free?

Viewer by SEPPmail is free to download, with no in-app purchases.

### Is Heldenlohn free?

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

### Do Viewer by SEPPmail or Heldenlohn have ads?

Neither Viewer by SEPPmail nor Heldenlohn shows ads.

### Which is updated more often, Viewer by SEPPmail or Heldenlohn?

Viewer by SEPPmail ships an update every 13 months, and Heldenlohn every 2 days. Most recently, Viewer by SEPPmail was updated on October 8, 2026 and Heldenlohn on October 11, 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.*