Oh Bother - Work from home with boundaries.

EssentialPIM - EssentialPIM is a free Personal Information Manager that keeps up with the times and lets you manage appointments, tasks, notes, contacts, password entries and email messages across multiple devices and cloud applications.

Kin - Kin is money for the digital world. It is used to generate value through a shared, decentralized cryptocurrency in a digital ecosystem of apps and their users.

Todo.txt - Track your tasks and projects in a plain text file, todo.txt. A todo.

OurFlat - Groceries, bills, calendar, chores & chat for any household.

Task Coach - Task Coach is a simple open source todo manager to keep track of personal tasks and todo lists.