Nice find, hadn't seen this one. One gap I noticed: the task management category is all team and project tools. Nothing for a plain personal to-do list or day planner, which is what most people leaving Google Tasks or Microsoft To Do actually need.

Disclosure: I build one, OmmiQ (ommiq.com), a day planner made and hosted in Germany. Free, no subscription, no tracking. I've just submitted it there. If anyone knows other European personal to-do apps, post them too.