# RN DocSync vs Fernsprechbuch

The clearest difference is update cadence: Fernsprechbuch at weekly against RN DocSync's every 10 months. RN DocSync's advantage is iOS requirement (15.0 vs 18.4). On price, ads, in-app purchases and device support 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, Fernsprechbuch weekly. The most recent releases landed on October 24, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | RN DocSync | Fernsprechbuch |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Weekly** |
| Monetization | Free | — |
| Size | 26 MB | 2 MB |
| Requires iOS | **15.0** | 18.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [EDITH GmbH & Co. KG](https://appshunter.io/developer/1159057644) | [Mohamad El-Lahib](https://appshunter.io/developer/1759444393) |

## 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


### Fernsprechbuch

[App page](https://appshunter.io/ios/app/fernsprechbuch/id6768639060)

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

**In-app purchases:** none


## Frequently asked questions

### Is RN DocSync free?

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

### Is Fernsprechbuch free?

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

### Do RN DocSync or Fernsprechbuch have ads?

Neither RN DocSync nor Fernsprechbuch shows ads.

### Which is updated more often, RN DocSync or Fernsprechbuch?

RN DocSync ships an update every 10 months, and Fernsprechbuch weekly. Most recently, RN DocSync was updated on October 24, 2026 and Fernsprechbuch on October 5, 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.*