# Viewer by SEPPmail vs MyDATEV

The clearest difference is review sentiment: MyDATEV at 33% against Viewer by SEPPmail's 0%. MyDATEV also leads on update cadence (every 6 weeks vs every 13 months). Viewer by SEPPmail's advantage is iOS requirement (12.4 vs 17.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Viewer by SEPPmail ships an update every 13 months, MyDATEV every 6 weeks. The most recent releases landed on October 8, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Viewer by SEPPmail | MyDATEV |
| --- | --- | --- |
| 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 | **33.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 6 weeks** |
| Monetization | Free | Free |
| Size | 19 MB | 89 MB |
| Requires iOS | **12.4** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [SEPPmail AG](https://appshunter.io/developer/586785754) | [DATEV eG](https://appshunter.io/developer/353479704) |

## 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


### MyDATEV

[App page](https://appshunter.io/ios/app/mydatev/id6757741069)

Securely connect with your tax advisor to exchange documents, communicate directly, and manage tasks and approvals. Upload receipts and access other DATEV cloud applications seamlessly.

**Highlights:** Secure login with DATEV account, Push notifications for updates, Direct chat communication, Task management and deadlines, Document review and approvals, Upload receipts and documents

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Viewer by SEPPmail free?

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

### Is MyDATEV free?

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

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

Neither Viewer by SEPPmail nor MyDATEV shows ads.

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

Viewer by SEPPmail ships an update every 13 months, and MyDATEV every 6 weeks. Most recently, Viewer by SEPPmail was updated on October 8, 2026 and MyDATEV on October 17, 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.*