Guides / Block Lists and Focus Sessions
How long should a focus session be?
For most people, 25 to 50 minutes is the right range for a focus session. Start with a length you are certain you can finish, such as 25 minutes, and add 5 to 10 minutes only once that feels easy. Shorter suits dull or draining tasks, longer suits work that needs a warm-up. A short session you finish beats a long one you resent.
A good starting range, and how to adjust it
There is no single correct number. What works is the longest session you will reliably finish, not the longest one you can imagine on a good day. For most people that lands between 25 and 50 minutes.
Let the task nudge the number:
- Dull or draining work (inbox, admin, reading you are dreading): about 25 minutes. Short enough to start without negotiating with yourself.
- Work that needs a warm-up (writing, coding, problem sets): 40 to 50 minutes, so the first stretch of getting into it does not eat the whole session.
- Anything longer: earn it. Add 5 to 10 minutes only after the current length has felt easy for several days in a row.
Your energy matters too. A length that works at 9 a.m. can be too long at 4 p.m. Running shorter sessions when you are tired is not a failure, it is a better fit.
Why the length matters more when the blocker does not bend
A bloq holds for the full length of the session. The site puts it plainly: a bloq ends when the timer ends, and there is no snooze button. That makes the number you pick a real commitment, not a suggestion.
With Super Strict Mode on, you cannot pause the timer, stop the session, or edit the active block list. You also cannot delete the app during a session. Super Strict Mode cannot be disabled mid-session either, so the site tells you to use it wisely.
In practice, choose a length with some margin:
- Pick a length you would bet on finishing, not the best-case version of your day.
- Check your calendar first. If a call starts in 35 minutes, a 50-minute session is the wrong number.
- Build the block list around what actually distracts you, and leave out any app you need for the task. While a session runs, blocked apps and sites are redirected back to bloq.
- Handle water, coffee, and the bathroom before you start.
When the session ends, every synced screen is unblocked at once, so you do not have to release your iPhone and Mac separately.
Starting your first session at the right length
On iPhone, setup takes about a minute:
- Open the Block Lists tab and tap +.
- Name the list and pick the apps and websites to restrict.
- Go to the Focus tab, select that list, and start a session.
For the first week, start shorter than you think you need. Run a 25-minute session, take a real break, then run another if you want to. That beats a long session you regret picking at minute 20.
If you also use a Mac, starting a session on one device blocks the other at the same moment. On iPhone that relies on Background App Refresh being on, and iOS will not wake an app you have force-quit. If you want the block applied right away, open bloq on the iPhone: opening it always syncs and applies the block immediately.
Breaks, schedules, and other ways to shape your day
Sessions work best with real breaks between them, away from the screen. On Mac, Bloq Screen shows full-screen eye breaks on your schedule: you look at something 20 feet away until the countdown ends. It is included with bloq Mac at no extra cost. The reasoning is in The 20-20-20 Rule: Give Your Eyes a Break From Screens.
If you land on a length you like, schedule it. Scheduled sessions start focus sessions for you automatically and sync across iPhone and Mac through your account. You decide the length once, on a calm day, instead of re-deciding every morning.
If a fixed block does not suit you, a limit session is a different tool. It watches how long you use the selected apps and websites each day, and once you pass your allowance (the site's example is 30 minutes) they are blocked until midnight.
When a fixed-length session is the wrong tool
A timed block fits work you can estimate. It fits badly when you cannot predict how long a task will take, or when you might be pulled away at any moment, such as on-call duty, caring for someone, or a day of unscheduled calls. In those cases, shorter sessions or a daily limit make more sense than one long lock.
For more on how sessions work, read What is a focus session and how does it work?. If you are choosing lengths for revision, see How do I block distracting apps while studying for exams?. If your office is your kitchen table, see How do I block social media while working from home?.
Try it
bloq locks distracting apps and websites on your Mac and iPhone at once. Start a session on one device and the other locks the same second.
Frequently asked questions
Is 25 minutes too short to get real work done?
For many tasks, no. Twenty-five minutes with no app-hopping can beat an hour of half-attention. If you keep reaching the end just as you get going, move up to 40 or 50 minutes.
Can I end a bloq early if I pick too long a session?
With Super Strict Mode on, no. You cannot pause, stop, or edit the session, and the site says there is no snooze button. Pick the length as if there is no way out.
How long should breaks between sessions be?
Short enough that you actually go back to work: a few minutes after a short session, longer after a long one. Spend it away from screens, standing up, drinking water, or looking at something far away.
Should I use the same session length every day?
Not necessarily. Many people keep a default and adjust by task and energy. If you want a fixed routine, scheduled sessions start themselves automatically, so the length is set once.