Traggo records tagged time spans rather than forcing work into a task hierarchy. A replacement should be evaluated using the reports you actually produce.
Track one representative week with overlapping projects, meetings, breaks, and an entry added after the fact. Compare how quickly you can start or correct a timer, split a span, tag it, and generate a project or activity report. Export the data and check time zones, durations, tags, and rounding before considering a migration. If you bill clients, verify the invoice total against your own calculation.
The Traggo project describes its tag-based model. Do not assume that a task-centric tracker will preserve the same categories or flexible reporting without extra setup.