OneTask Guide
The Dynamic Island Is the Best Productivity Surface Apple Ever Shipped
Apple gave you a 200-pixel cutout that's always on screen, never blocked by your app, and updates in real time. Most apps use it for sports scores. OneTask uses it for the one thing that actually matters: what you said you'd do right now.
Why Dynamic Island Beats Every Other Productivity Surface
Lock screen widgets disappear when you unlock. Home screen widgets disappear when you open an app. Notification banners show up once and then they're gone. The Dynamic Island is the only iOS surface that's always on screen no matter what app you're in. You're doom-scrolling Twitter? It's there. You opened Slack to 'just check one thing'? It's there. You forgot what you were supposed to be doing? Tap it, expanded view, you remember. OneTask is built around that surface. You pick a task, hit start, and your task title plus a live countdown timer sit in the Dynamic Island until you finish or quit. It's a constant interrupt to the autopilot that pulls you into the next app. The cognitive science is simple: visible reminders kill task-switching.
Why Most 'Dynamic Island Apps' Miss the Point
Sticky Timers, Ticket Timers, Point in Time — these apps put a generic countdown on the Dynamic Island. You set 25 minutes and it counts down. Fine. Useless for actual work, because the timer doesn't know what you're doing, doesn't show you what you're doing, and doesn't push back when you switch tasks. OneTask puts the task itself in the Dynamic Island. Not 'pomodoro #3.' The actual sentence you wrote: 'Finish the client proposal intro.' Live Activity expands to show the full task, elapsed time, and a one-tap done button. It's not a timer with a label. It's a commitment surfaced where you can't avoid it. That's the difference between a stopwatch and an execution constraint.
How to do it
Pick a task. One sentence.
Open OneTask, type the one thing you're doing right now. Not 'work on project X' — 'Write the first three paragraphs of the client intro.' Specific enough that you'll know when it's done.
Hit start
OneTask launches a Live Activity. The task title and elapsed time appear in the Dynamic Island. Long press to expand and see the full view. Tap the timer to jump back into the app.
Switch apps freely — the task stays visible
Open Mail, Slack, Twitter, whatever. The Dynamic Island keeps your task pinned at the top of the screen. You can't forget what you were doing because it's literally always there.
Get pulled into something else? The Island calls you back
Three minutes into a Reddit rabbit hole, glance up. Your task is still there. Still timing. Tap it, you're back. No notification needed — the surface itself is the nudge.
Tap done
Long-press the Dynamic Island, hit done. Task complete, streak incremented, Live Activity dismissed. Pick the next one.
Mistakes to avoid
- 1Using a generic countdown timer instead of a task-aware one — countdowns don't show what you're working on
- 2Hiding the Dynamic Island by force-quitting OneTask — Live Activities only work while the app is in the background
- 3Setting tasks too broad ('work on project') — Dynamic Island shows the title, so write it as one specific action
- 4Skipping the start button — without an active Live Activity, OneTask is just another todo app and the Island stays empty
- 5Using OneTask without a Pro Motion display — Dynamic Island works on all iPhone 14 Pro+ and iPhone 15+ models, but the experience is best with always-on display
The Single-Task Live Activity Built for People Who Actually Work
OneTask runs on every iPhone with a Dynamic Island. Live Activity stays pinned until you're done. Apple Watch mirror so the same task shows on your wrist. iCloud sync so the task persists across devices. $1.99/month or $19.99/year. No ads, no upsells. The only productivity app that uses the best surface Apple ever built.
Learn more about OneTask →FAQ
Which iPhones support OneTask's Dynamic Island feature?+
iPhone 14 Pro, 14 Pro Max, 15, 15 Plus, 15 Pro, 15 Pro Max, 16, 16 Plus, 16 Pro, 16 Pro Max, 16e, and 17 series. Any iPhone with the Dynamic Island hardware.
Does the Dynamic Island timer drain battery?+
Negligibly. Live Activities use a low-power update mechanism — the Dynamic Island only redraws when state changes, not continuously. You'll lose more battery to one minute of TikTok than a full Pomodoro session.
Can I see the task on the Lock Screen too?+
Yes. The same Live Activity appears as a Lock Screen Live Activity. Pick up your phone, the task is the first thing you see — before you can open Instagram.
What if I have multiple tasks I'm juggling?+
OneTask intentionally limits you to one active task at a time. That's the whole point of the product — single tasking. If you need multiple parallel timers, this isn't the right app.
How is this different from Sticky Timers or Ticket Timers?+
Those are generic countdown timers with labels. OneTask is a task-execution surface — you commit to a single specific action, the Dynamic Island shows that action by name, and the app is built to prevent task-switching, not just count down.
Related Guides
Guide
Best ADHD Focus App
Looking for the best ADHD focus app? We break down what features actually help ADHD brains focus and which app designs make concentration harder, not easier.
Guide
Single-Tasking vs Multitasking
Cognitive science is settled: multitasking costs up to 40% of productivity and only 2.5% of people can do it. Here's the data — and the iPhone fix.
Use Case
For Remote Workers
ADHD and remote work is a tough combo. OneTask helps WFH professionals stay on track with one task at a time, timers, widgets, and Live Activity. Focus better.