Todoist - Todoist is a to-do list that helps you get organized, at work and in life.

Klaviyo - Klaviyo helps brands own the customer experience, grow higher-value relationships, and deliver more personalized marketing experiences across email, mobile, and web.

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

Criteo - Build, scale, and activate first-party audiences with The Commerce Media Platform.

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.

Campaign Monitor - Email marketing software built for designers and their clients to run successful email campaigns.