This app simulates amateur radio CW QSOs with realistic call signs, signal levels, and speeds. It supports various QSO styles, including contest and rubber stamp, with features like pile-up reproduction and RIT control.
3.1.0
December 22, 2025
Improved stability and screen-resolution compatibility.
Thanks 5-Star and comments. I would like to see if there is a better way.
RST 599xp is a CW QSO simulator designed for amateur radio operators. It realistically simulates contacts with varying call signs, signal strengths, and speeds, supporting different QSO styles like contest and rubber stamp.
RST 599xp employs a simulation-based learning methodology. By providing a realistic environment for practicing CW QSOs, users can improve their skills in a practical, hands-on manner without needing to connect to actual radio equipment.
RST 599xp allows users to track their progress through its Hi-Score data. Users can capture their Hi-Score dialog and clear their data, enabling them to monitor improvements in their QSO performance over time.
RST 599xp does not offer formal certifications. Its primary purpose is to provide a realistic simulation for practicing and improving CW QSO skills for amateur radio operators.
RST 599xp is a paid application, available for $2.99. This one-time purchase grants access to all its simulation features.
No, RST 599xp is ad-free. As a paid application, it does not contain any advertisements, ensuring an uninterrupted user experience.
RST 599xp is specifically designed for iPad. It also supports keyboard input from Apple Silicon Macs, but is not compatible with iPadOS itself.
RST 599xp was last updated on December 22, 2025, with version 3.1.0. This indicates a commitment to ongoing development and improvements for the application.
