An essential tool for owners of the Cytronex C1 electric bicycle conversion kit. Using this app you can: - Monitor the status of your Cytronex C1 battery bottle - Adjust the assistance power for each of the three levels of assistance - Adjust the brightness of the LED display on the handlebar button - Select between hub and derailleur gears for the bicycle - View the Cytronex Tips web page - View the Cytronex C1 user manual and fitting instructions - View the Cytronex accessories store web page - Send logs containing diagnostic information to the Cytronex support team - Access an online troubleshooter to assist with common problems - Upgrade the firmware in your Cytronex C1 bottle Note that this app connects to a Cytronex C1 bottle via USB, using a cable connected to the charging base supplied with the kit. Most of the functionality of the app is only available when connected to a Cytronex C1 bottle.