You should know everything about your week. Sonaa doesn't.
Sonaa Week is the first product from Sonaa – a focused weekly calendar built to know as little about your week as possible.
The idea
Most productivity apps are built around engagement. They track what you do, when you do it, and – at some level – sell access to that knowledge. We think that's backwards. Your data is one of the most intimate things about you, and it should belong entirely to you.
Sonaa was created to build software that is designed for the user rather than for advertisers. Sonaa Week is our take on the calendar: a clean, seven-day view with optional end-to-end encryption – meaning what your tasks say is stored on our servers only in encrypted form.
Sonaa Week
- One-week view – everything for the next seven days in a single, distraction-free layout.
- Tasks & events together – no separate app for to-dos; they live alongside your calendar events.
- Optional E2E encryption – choose end-to-end encryption so task titles, notes and subtasks only leave your device encrypted.
- No trackers, no ads – we do not run analytics scripts or serve advertisements across any Sonaa product.
- Dark mode & Pomodoro timer – built-in focus tools without extra installs.
Who is behind Sonaa
Sonaa is built by Henrik Alexander Zabel, an independent developer in Munich, Germany. It is a self-funded project, built in the belief that software can be both useful and respectful of the people who use it – and it answers only to its users.
Why is Sonaa not Open Source (yet)?
Sonaa is built on a foundation of trust, and we know that for many, that trust is earned through open source. While the project is currently closed-source, it's not because we want to hide our code – it's because we are focused on establishing a stable, sustainable foundation as a small, independent project.
Managing an open-source project requires significant resources to do correctly. Right now, every hour we have goes into refining the experience and hardening our security. As we grow, we intend to open-source our core encryption libraries and security protocols first, allowing the community to audit the parts that matter most for your privacy.
Get in touch
Have feedback, a bug report, or just want to say hello? Write to us at contact@henrikzabel.com. We read every message.