# OpenShack Balloon Burst — Copy and send Morse code

> Copy and send Morse code (iPhone/iPad app by Frank Grossmann e.K..)

- Source: https://appshunter.io/ios/app/openshack-balloon-burst/id6813341498 (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: 2026-11-06

## What is OpenShack Balloon Burst?

Make regular CW practice more enjoyable while improving your receiving and sending. Hear CW, copy it correctly and burst the balloons before they pile up, or switch to sending practice. As you move up the levels, the speed increases and more balloons join the challenge.

Practise single characters, character groups, words or callsigns. Choose A-Z for character and group practice without switching keyboard layouts, or Mixed to include numbers and punctuation. Set your starting level and work on your speed and accuracy.

In TYPE mode, copy by ear and type what you hear. For sending practice, key the characters, groups, words or callsigns with the on-screen paddle or your own paddle connected through an OpenShack Box.

Build a streak, catch the bonus balloons and try to beat your personal best. If you want to compare with other operators, publish your score under your callsign to the OpenShack leaderboards. A-Z and Mixed have separate character categories. You decide whether to publish each score, be asked after a run, or enable automatic publishing.

Practice works offline; no OpenShack account is required. Internet access is needed for online scores, Network Box connections and website links. Settings and personal bests stay on your device.

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. Help and the OpenShack manual are linked from About.

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 Balloon Burst safe?

Not enough ratings yet to assess OpenShack Balloon Burst.

## Is OpenShack Balloon Burst legit?

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


## Version history (last 5 releases)

### 1.1.36 — 2026-11-02

- Quieter game effects.
- More reliable keyed answers: each character gets its own timeout, and the next answer replaces the previous feedback promptly.
- Improved Bluetooth Box startup and data transfer.
- Clearer wording when publishing a score.

### 1.1.35 — 2026-10-09

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

Audio output choices are now labelled This device / Box. The corrected scoring and top-edge ceiling are retained.

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

### 1.1.33 — 2026-10-06

Updated CW tone transitions and clearer answer text on iPhone and iPad. About now links to the OpenShack Box and CW Suite for Windows.

### 1.1.30 — 2026-10-05

The top edge is now the ceiling, with the previous gameplay timing preserved. Game sound effects are quieter; CW tone volume stays the same.

### 1.1.26 — 2026-10-03

Improved on-screen keyboard input and corrections for characters and groups. Choose A–Z or Mixed characters for character/group practice. More compact Box controls with more reliable speed and key-mode updates. About now shows the correct iOS version and current companion-app links.

## 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 CW Summit](https://appshunter.io/ios/app/openshack-cw-summit/id6813341974)
- [OpenShack RufzXP TX](https://appshunter.io/ios/app/openshack-rufzxp-tx/id6813342719)
- [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 2026-11-06.*