Tasks 'n Timers is a focus timer built around your tasks, local or from Google Tasks. Pick a session length that fits the work, extend it with one tap when you're in the zone, and see where your time really went.
See your lists, your plan for today and the flow timer in action.

Connect Google Tasks to bring in all your lists, or keep everything local with no account at all.

Get a time estimate for each task, worked out on your device. Accept it or change it in one tap, and start a session from the task.

Pick 5, 15, 25 or 50 minutes for each session, then add +5 to +50 when you're in the zone. No forced breaks.
Everything you need to plan the day and protect your focus.
Swipe tasks in from any list to build your plan. It stays from one day to the next and follows you between your phone and the web, so you always pick up where you left off.
Every session is logged in the minutes you actually focused, and your stats show where your time really went.
Your history and settings stay on your device and, if you connect Google Tasks, in a private app folder in your own Google Drive. No separate account, no servers of ours.
Use Tasks 'n Timers in your browser, or on your iPhone.