Is time tracking included on the free plan?

Yes on supported tiers. Check current plan limits in billing because fair-use caps can change.

Can I edit a running timer?

Stop, adjust notes or duration if your plan allows manual edits, and save. Your audit preferences are your own.

When the tab is idle for a while we prompt you to keep or discard the silent stretch so months do not inflate accidentally.

Responsive layouts work in mobile Safari and Chrome. For long sessions many people still prefer desktop timers.