# BOS Calculator

> Converts BOS radio channels to frequencies and looks up German BOS entries. (iPhone/iPad app by Sascha Radermacher.)

- Source: https://appshunter.io/ios/app/bos-calculator/id580829742 (this page in markdown: same URL + `.md`)
- Developer: [Sascha Radermacher](https://appshunter.io/developer/528345987)
- Category: Reference, Productivity
- Price: $1.99
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 7.0 · 4 MB
- Languages: American English, German (Germany)
- Released: 2012-12-10
- Data updated: 2026-07-07
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/bos-calculator/id580829742/reviews.md

## What is BOS Calculator?

Efficiently convert BOS radio channels to BOS radio frequencies within 2m/4m/8m/70cm frequency lower/upper bands.
Additionally, look up BOS entries in Germany.

Available for iPhone and iPad with a simple, easy-to-use design!

This software is subject to continuous improvement. Send us your feedback to support@retterapps.de and help us develop this app further.

## Key features

- BOS radio channel to frequency conversion
- Support for 2m/4m/8m/70cm bands
- German BOS entry lookup
- Simple and easy-to-use design
- Available for iPhone and iPad


## Frequently asked questions about BOS Calculator

### What is BOS Calculator?

BOS Calculator is a utility app designed to convert BOS radio channels into their corresponding radio frequencies. It also allows users to look up BOS entries specific to Germany. The app is available for iPhone and iPad.

### What frequency bands does BOS Calculator support?

BOS Calculator supports conversion for the 2m, 4m, 8m, and 70cm frequency lower and upper bands. This ensures a wide range of compatibility for different radio communication needs.

### Is BOS Calculator available on Android devices?

Based on the provided information, BOS Calculator is available for iPhone and iPad. There is no mention of support for Android devices.

### How much does BOS Calculator cost?

BOS Calculator is a paid application, priced at $1.99. This one-time purchase grants access to all its features.

### When was BOS Calculator last updated?

The latest version of BOS Calculator, 2.0.2, was last updated on January 22, 2015. The app was initially released on December 10, 2012.

### What is the age rating for BOS Calculator?

BOS Calculator has an age rating of 4+. This indicates it is suitable for users of all ages, with no mature content.

### Does BOS Calculator have ads?

No, BOS Calculator does not contain advertisements. The app is ad-free, providing an uninterrupted user experience.

### How can I provide feedback for BOS Calculator?

You can provide feedback and suggestions for BOS Calculator by sending an email to support@retterapps.de. The developers are actively seeking user input for continuous improvement.

## Version history (last 4 releases)

### 2.0.2 — 2015-01-22

This app has been updated by Apple to display the Apple Watch app icon.

Minor new year's update.

### 2.0.1 — 2014-10-31

Detail improvements

### 2.0.0 — 2014-07-28

Completely revised. Version 2.0 is out!
– Targeting iOS 7
– iPad support
– BOS database (Germany)

### 1.0.0 — 2012-12-08

No release notes.

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## More apps by Sascha Radermacher

- [Handyalarm](https://appshunter.io/ios/app/handyalarm/id631428117)
- [RETTERAlarm](https://appshunter.io/ios/app/retteralarm/id1450627328)
- [INDUSTRIEAlarm](https://appshunter.io/ios/app/industriealarm/id1504259929)
- [Augel Notfall](https://appshunter.io/ios/app/augel-notfall/id1534306406)
- [Backend-APP for Shopware](https://appshunter.io/ios/app/backend-app-for-shopware/id1534422773)

All apps by Sascha Radermacher: https://appshunter.io/developer/528345987

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-07.*