Most Jira time trackers are Cloud plugins. They live inside a browser tab and need an active Jira session. Every time you switch tabs to see the timer, Jira loads another ten widgets you didn't ask for. Tempo and Clockwork are built for finance departments, Clockify and Everhour for agencies, Hubstaff for managers who want screenshots and activity scores, and Toggl Track to be your team's standalone timesheet. None of them are built for the engineer who just wants a timer that doesn't lose hours when Jira goes dark for five minutes.
Planim Time is a native desktop app: Rust under the hood, tiny installer, one icon in your menu bar or system tray, no browser tab. Sign in with Atlassian in one click; long-lived credentials live in the OS keychain, the same vault your browser uses for saved passwords. Worklogs round-trip through Jira's own API, so nothing gets stuck in a third-party silo. Open a plane-mode laptop, start a timer, land, push, done. That's the whole pitch.