This app is a fully functional offline Morse code practice app that allows users to practice sending Morse code with an iambic paddle practice oscillator. It is available for Android devices and does not require an internet connection. The app is free of ads, nags, and in-app purchases.
However, there are certain settings on Android devices that can affect the sensitivity and performance of the app. These settings, such as Tap Duration and Ignore Repeated Touches, should be turned off during use. The app's default settings are recommended for optimal performance.
The app is designed for amateur ham radio operators and enthusiasts who want to practice sending Morse code. It does not connect to a ham radio to provide a keying device. Instead, users can practice by touching down on the DIT and DAH paddles, rather than pinching, squeezing, or flinging them.
The app offers various settings, including WPM, CW weight ratio, reverse paddles, and the option to show or hide Morse code and text. Users can also choose the sidetone frequency between 400Hz and 800Hz. By touching and holding both paddles, users can cycle between DIT and DAH and feel the iambic rhythm.
In addition to practicing Morse code, the app also translates International Morse code into Latin letters, Arabic numerals, punctuation, CW prosigns, and special characters in real time. These include á, ch, é, ñ, ö, and ü. The app also provides a brief instruction on how to use an iambic paddle key to send Morse code.
This app may be of interest to amateur ham radio operators, both QRP and QRO, as well as CW, Morse code, and telegraph enthusiasts. It may also be useful for preppers who want to improve their Morse code skills.









