This is a macOS native personal task management application. It also has a time tracking function. It is easy to use and easy to continue. Data is saved locally in plain text, making it highly private and easy to reuse. Data can also be reflected and shared with the genuine macOS calendar app.
Details »
This is an email encryption app that works as an extension of the Mail.app. Since it uses a common key encryption method, no complicated steps are required to get started. By installing it on both sides, you will be able to exchange encrypted emails using the same operations as normal. There is also an iOS version.
Details »
This is an application for voluntary rehabilitation of aphasia. This app is only available in Japanese.
Details »