The only exception to this is if you ask for Cantonese audio. That audio will be retrieved from my server, and my server does log which words are requested as audio. These logs can contain: the word or phrase that you want to hear in Cantonese audio, the address of the page on which it was found (if it was on a public website), the type of your device, your IP address, and the date and time. These logs are kept for a limited time and are used only to make sure my server is functioning correctly and is not being overloaded or abused. If abuse does occur, I may decide to send the relevant log entries to the Internet service provider that carried the traffic, but only in extreme cases i.e. obvious large-scale attempts to break my server. I will not pay any attention to normal use.
If you use this app to visit a website, that website might record your interactions—this is what happens when you use any Web browser. This app does not add any of its own monitoring, but you might wish to check the Privacy Policy of the websites you visit.