# OpenShack RufzXP TX — Copy callsigns, build CW speed

> Copy callsigns, build CW speed (iPhone/iPad app by Frank Grossmann e.K..)

- Source: https://appshunter.io/ios/app/openshack-rufzxp-tx/id6813342719 (this page in markdown: same URL + `.md`)
- Developer: [Frank Grossmann e.K.](https://appshunter.io/developer/6812478072)
- Category: Education
- Price: $4.99
- Age rating: 12+
- Requires: iOS 15.0 · 6 MB
- Languages: American English
- Released: 2026-09-29
- Data updated: 2026-11-10

## What is OpenShack RufzXP TX?

One callsign at a time, at increasing speed. OpenShack RufzXP TX sends amateur-radio callsigns in CW for you to copy on the keyboard or send back with a paddle.

In keyboard mode, type the callsign you copied and press Enter. In paddle mode, key it back with the on-screen paddle or your own paddle connected through an OpenShack Box.

Correct copies raise the WPM and missed callsigns bring it down according to your settings. Choose the starting speed, run duration, repeats and how the speed changes. Farnsworth spacing is available for practice.

After the run, review each callsign alongside your answer, the WPM and the points earned. Your best WPM is the highest speed at which you actually copied a callsign correctly. Personal bests are saved on your device.

If you want to compare with other operators, publish completed scores under your callsign to the OpenShack leaderboards. Keep publishing manual, ask after each run, or explicitly enable automatic publishing.

Practice and the included callsign list work offline. No OpenShack account is needed. Internet access is required for online scores, Network Box connections and website links.

Use your own paddle with an optional OpenShack Box, sold separately. Connect through Bluetooth LE or Wi-Fi and the internet (Network Box). Compatible firmware is required. USB serial connections are not supported on iOS.

English interface for iPhone and iPad. One app purchase, no subscription. About links to help and other OpenShack CW apps.

OpenShack CW by DL2CC.

Raise media volume to hear CW; Silent Mode may stay enabled. Practice stops when the app enters the background or the device locks.

The OpenShack CW Suite for Windows includes CW training, a CW decoder, sending analysis and CW games. Explore the suite and OpenShack Box:
https://openshack.com/cw/
https://openshack.com/keyer/
The Box and Windows licence are sold separately from this app.

## Is OpenShack RufzXP TX safe?

Not enough ratings yet to assess OpenShack RufzXP TX.

## Is OpenShack RufzXP TX legit?

OpenShack RufzXP TX appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for OpenShack RufzXP TX is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 5 releases)

### 1.1.19 — 2026-11-02

Improved Bluetooth Box startup and data transfer. Clearer wording when publishing a score.

### 1.1.18 — 2026-10-10

Added Bluetooth audio support during CW practice. Updated About information.

Audio output choices are now labelled This device / Box.

Local CW playback now has a 150 ms lead-in for Bluetooth earphones. CW element timing stays unchanged.

### 1.1.16 — 2026-10-06

Updated screen-key and paddle sidetone transitions. Listening tones and silent gaps are unchanged. About now links to the OpenShack Box and CW Suite for Windows.

### 1.1.14 — 2026-10-05

Removed background noise between CW elements and callsigns. Tone, timing and your saved settings stay the same.

### 1.1.12 — 2026-10-03

Improved callsign entry and corrections with the on-screen keyboard. Feedback and results fit smaller screens more clearly. More compact Box controls with more reliable speed and key-mode updates. About now shows the correct iOS version and current companion-app links.

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## More apps by Frank Grossmann e.K.

- [OpenShack Morse Code Trainer](https://appshunter.io/ios/app/openshack-morse-code-trainer/id6812478070)
- [OpenShack Remote](https://appshunter.io/ios/app/openshack-remote/id6812642419)
- [OpenShack Balloon Burst](https://appshunter.io/ios/app/openshack-balloon-burst/id6813341498)
- [OpenShack CW Summit](https://appshunter.io/ios/app/openshack-cw-summit/id6813341974)
- [OpenShack Pileup Trainer](https://appshunter.io/ios/app/openshack-pileup-trainer/id6813343410)

All apps by Frank Grossmann e.K.: https://appshunter.io/developer/6812478072

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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 2026-11-10.*