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iCluster - The DX-Cluster database

By Marcus Roskosch

This app is only available on the App Store for iOS devices.


iCluster is an iPhone and iPad App for HAMs, SWLs (Short wave radio listeners) or for everybody who want’s to know, what’s going on on the amateur radio frequencies.

This App is connecting the so called international DX-Cluster database in realtime. The results are analyzed and displayed in an easy to read overview.

The content can be filtered by frequency (e.g. 80m, 40m etc.) or mode (CW = Morse, Beacon or digital modes), Call Prefix, ITU/CQ Zone, Country and many more.

Calls (the callsign of the operators) will be decoded automatically by the App. This allows even inexperienced users to know the countries of the operators.

iCluster is an ideal tool for amateur radio operators for field days or contests. But also unlicensed users can use iCluster to find out the frequencies for their shortwave scanner or short wave radio receiver.


■ Real time DX-Cluster database
■ Several pre-defined Cluster Servers
■ Easy to add your own Server (e.g. CW-Skimmer)
■ Several Filter and Filter combinations
■ Several Alarm settings
■ (Database!) lookup
■ website lookup
■ HamQTH lookup
■ Display whole cluster on a Map (Globe)
■ Display single Spot on a Map (Globe)
■ Shows distance and bearing from own location
■ iCloud Synchronization
■ UTC Clock
■ No HAM license or registering required

Take a look to the manual to find out more:

This App exists since the App Store Exists as this was my first App. It has been continuously improved and re-written several times and is now available as Version 10, written in Swift 3.

It's interesting to see how many other bad copies of my App are available on the App Store. If there is another DX-Cluster App, offering features my App is missing, just let me know.

vy 73,
Marcus, DL8MRE

What's New in Version 10.0.02

- Further improved Filters
- Now, for your convenience, you can switch to a new Simple Filter Mode
- Better support for small displays (e.g. iPhone SE)
- Improved custom Cluster Server support

Please don't forget to rate iCluster - thank you so much!

vy 73,
Marcus, DL8MRE


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iCluster - The DX-Cluster database
View in iTunes
This app is designed for both iPhone and iPad
  • USD 2.99
  • Category: Utilities
  • Updated:
  • Version: 10.0.02
  • Size: 20.0 MB
  • Language: English
  • Developer:

Compatibility: Requires iOS 10.1 or later. Compatible with iPhone, iPad and iPod touch.

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