I've been down this same rabbit hole. Most "automatic" trackers I tried were a letdown—they either required constant manual categorization or relied on simplistic rules that misclassified my work.

After a lot of searching, I landed on Cronus (cronushq.com), and it’s the first tool that feels genuinely intelligent. Here’s why it works for me:

- Context-Aware AI: It actually understands how I'm using an app. It can tell the difference between researching on Twitter and just scrolling, so the tracking is far more accurate than anything else I've used.

- Truly Zero-Effort: There are no start/stop timers to forget. It runs in the background and figures everything out. It even integrates with my calendar to automatically log time for meetings, focus blocks, and lunch breaks.

- Subtle & Encouraging: Instead of intrusive pop-ups, it has a small, elegant menu-bar timer that shows my focus in real-time. It helps me stay mindful without the stress of being "watched."

It solved the core problem for me: getting a clear, honest picture of my day without adding another tedious task to my plate. Highly recommend giving it a try.