# DATEV SmartLogin vs Viewer by SEPPmail

The clearest difference is review sentiment: DATEV SmartLogin at 80% against Viewer by SEPPmail's 0%. DATEV SmartLogin also leads on rating (4.5 vs 1.0) and update cadence (every 3 weeks vs every 13 months). Viewer by SEPPmail's advantage is iOS requirement (12.4 vs 15.1). 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.

DATEV SmartLogin holds the better App Store score, 4.5 against 1.0. That said, the two scores are not equally well evidenced: DATEV SmartLogin has 265 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 80% of DATEV SmartLogin's written reviews are positive against 0% of Viewer by SEPPmail's.

DATEV SmartLogin ships an update every 3 weeks, Viewer by SEPPmail every 13 months. The most recent releases landed on September 24, 2026 and August 24, 2026 respectively.

## The numbers

| Metric | DATEV SmartLogin | Viewer by SEPPmail |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (265 ratings)](https://appshunter.io/ios/app/datev-smartlogin/id943870921/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/viewer-by-seppmail/id6446402452/reviews) |
| Number of ratings | **265** | 1 |
| Positive reviews | **80.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 13 months |
| Monetization | Free | Free |
| Size | 39 MB | 19 MB |
| Requires iOS | 15.1 | **12.4** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DATEV eG](https://appshunter.io/developer/353479704) | [SEPPmail AG](https://appshunter.io/developer/586785754) |

## What reviewers say

### DATEV SmartLogin

[App page](https://appshunter.io/ios/app/datev-smartlogin/id943870921)

This app provides secure and intuitive access to your confidential data within the DATEV online world. Simply scan a QR code with the app to log in to DATEV online applications. A password protects the app from unauthorized use.

**Highlights:** Secure QR code scanning for login, Intuitive and simple interface, Password protection for app access, Authentication for DATEV online services, Phishing prevention measures

**In-app purchases:** none


### 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


## Frequently asked questions

### Is DATEV SmartLogin free?

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

### Is Viewer by SEPPmail free?

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

### Which has better reviews, DATEV SmartLogin or Viewer by SEPPmail?

DATEV SmartLogin is rated higher. DATEV SmartLogin averages 4.5 out of 5 from 265 ratings, while Viewer by SEPPmail averages 1.0 from 1 ratings.

### Do DATEV SmartLogin or Viewer by SEPPmail have ads?

Neither DATEV SmartLogin nor Viewer by SEPPmail shows ads.

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

DATEV SmartLogin ships an update every 3 weeks, and Viewer by SEPPmail every 13 months. Most recently, DATEV SmartLogin was updated on September 24, 2026 and Viewer by SEPPmail on August 24, 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.*