# RN DocSync vs SERSA Zeit

The clearest difference is iOS requirement: SERSA Zeit at 11.0 against RN DocSync's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

RN DocSync ships an update every 10 months, SERSA Zeit every 20 months. Both last shipped on November 2, 2026.

## The numbers

| Metric | RN DocSync | SERSA Zeit |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 months** | Every 20 months |
| Monetization | Free | — |
| Size | 26 MB | 2 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [EDITH GmbH & Co. KG](https://appshunter.io/developer/1159057644) | [all4net GmbH](https://appshunter.io/developer/460914773) |

## What reviewers say

### RN DocSync

[App page](https://appshunter.io/ios/app/rn-docsync/id1159057645)

This app allows Rail Network DocSync customers to download files to their device. Access your important documents offline by synchronizing with the Rail Network server.

**Highlights:** Download files to device, Synchronize with Rail Network server, Offline access to documents, Exclusive for Rail Network DocSync customers

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

**In-app purchases:** none


### SERSA Zeit

[App page](https://appshunter.io/ios/app/sersa-zeit/id1367885908)

**In-app purchases:** none


## Frequently asked questions

### Is RN DocSync free?

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

### Is SERSA Zeit free?

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

### Do RN DocSync or SERSA Zeit have ads?

Neither RN DocSync nor SERSA Zeit shows ads.

### Which is updated more often, RN DocSync or SERSA Zeit?

RN DocSync ships an update every 10 months, and SERSA Zeit every 20 months. Most recently, RN DocSync was updated on November 2, 2026 and SERSA Zeit on November 2, 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.*