Cabinet Beta - Cabinet Beta is a fast, stable, and easy-to-use file manager that allows you to easily manage your all files on the phone, SD card, and cloud, etc.
Microsoft To-Do - Task management tool
Solid Explorer - Solid Explorer is a powerful Android file manager featuring access to most popular cloud storages, root access and easy extensibility.
Gone - An ephemeral to-do list
Today - Visit the post for more.
KosmoTime - The to do list with super powers