Todoist is an online task management app and todo list managing millions of tasks. It has Web, iPhone, Android, Chrome, Firefox, Outlook flavors (and more!).
FormKeep is the best way to collect data from online forms without the hassle of running your own servers. Static sites using Jekyll, Hugo, Gatsby, or GitHub Pages can easily collect data from HTML forms, save the data here on FormKeep and also sending it over to Todoist for additional processing.