Quaderno is an invoicing application that simplifies taxes for online businesses, including those tricky EU VAT compliance rules.

Google Calendar is a time-management and scheduling calendar service developed by Google. It enables users to create and edit events, reminders, and share calendars with others to easily coordinate meetings and activities.

Dropbox is a cloud-based file storage platform that allows users to save, share, and access files and documents from any device. It facilitates seamless file synchronization, collaboration, and secure data storage across various platforms.