Setting up a Focus on your Mac that lets only work apps through

Most people set up Focus on a Mac by asking what to silence. That question has no end to it, because new things that notify keep arriving, and every one of them has to be found and muted individually. The setting that actually works asks the opposite question: what is allowed through, with everything else silent by default.

macOS supports that directly. Inside a Focus, notifications can be configured as Allow Some Apps rather than Silence Some Apps, and the difference between those two choices is the difference between a list that needs constant maintenance and a list that is written once. What follows is how to build the second kind, and where the model breaks.

Creating the Focus

The whole thing lives in System Settings, under Focus in the sidebar, which may need scrolling to reach.

Clicking Add Focus offers two routes. A provided Focus is picked from a list that includes options such as Gaming and Work. A custom Focus is created by clicking Custom, entering a name, selecting a colour and an icon, then clicking OK. Apple states that up to ten custom Focuses can be created.

Building a custom Focus is usually better than adapting a provided one, for a reason that has nothing to do with features: a Focus named for the actual activity gets used. A Focus called Work is a category. A Focus called Writing or Review or Code is an instruction, and the trigger for turning it on is obvious.

One provided Focus has behaviour worth knowing about even if it is never used deliberately. Apple notes that the Gaming Focus is set by default to turn on whenever a game controller is connected to the Mac, and that to receive notifications while it is on, people or apps have to be specified. A controller plugged in for charging can therefore silence a Mac with no visible cause.

Allowed Apps is the setting that matters

Inside a Focus, the Allowed Apps section holds the decision that shapes everything else. Apple documents a Notifications pop-up menu there with two modes.

Allow Some Apps means the chosen apps notify and nothing else does. Apps are added by clicking the Add button, selecting one or more, then clicking Add, and are removed by holding the pointer over the entry and clicking the remove button. Apple's own framing for this is a Work Focus that allows notifications only from the apps needed to do the work.

Silence Some Apps is the inverse, and it is the wrong default for a focus block. Every newly installed app, every tool a team adopts and every service that gains notification permission arrives permitted, and stays permitted until someone notices and adds it to the list. The list only ever grows, and it is always behind.

The same section holds a Time Sensitive Notifications switch, which permits notifications for events or tasks that require immediate attention. Apple adds a condition that is easy to miss: the option allowing apps to send those notifications also has to be selected in Notifications settings. Turning it on in one of the two places produces nothing.

Allowed People, and the emergency route

The Allowed People section works the same way, with Allow Some People and Silence Some People as the two modes, and contacts added or removed the same way.

Calls are handled separately. A pop-up menu next to "Allow calls from" offers everybody, allowed people only, people in the Contacts list, or people in Favorites on iPhone. Below it, an option for repeated calls permits notifications from anyone who calls two or more times within three minutes.

That repeated calls rule is the most valuable setting in this section, because it requires no coordination. Nobody has to be told in advance, added to a list, or kept up to date when a team changes. Anyone with a genuine emergency behaves the way people behave in an emergency, and gets through.

Why the allow list wins

The two modes look symmetrical and behave completely differently over time.

	Allow Some Apps	Silence Some Apps
Default for something new	Silent	Notifies
Maintenance needed	Only when adding a genuinely urgent app	Every time anything new notifies
Failure mode	An important notification is missed once, then the app is added	Focus quietly stops working and nobody notices
List length	Short, typically two to four apps	Grows without limit

The failure modes are the deciding factor. An allow list fails loudly and is fixed permanently in ten seconds. A deny list fails silently, and the usual symptom is a vague sense that Focus does not do very much, which is accurate, because by then it is not silencing most of what interrupts.

A useful constraint when building the list: if it runs past four apps, the Focus is not a focus. Chat and mail belong on it only when the work genuinely depends on them at that moment, and most of the time it does not.

Scheduling removes the need to remember

Focus settings include Set a Schedule, with Add Schedule offering three kinds of trigger.

A time schedule takes a start and end time and the days of the week it applies to. It can be edited later by clicking it, and temporarily stopped by clicking it and turning off Schedule at the top of the window.

A location schedule takes a place name from a search field. The Focus turns on when the location is reached and off when it is left, and Apple notes that Location Services has to be enabled in Privacy settings for this to be available. It can be paused by turning off Automation at the top of its window.

An app schedule takes an app name. The Focus turns on when that app is opened and turns off when it is closed or when another app is switched to.

The app trigger deserves more attention than it gets. Attaching a Focus to the tool where the work actually happens means the Focus lasts exactly as long as the work, starts without a decision and ends without one. It also fails safe: switching away to check something turns the Focus off, so nothing gets silenced during the rest of the day by accident.

The location trigger has an obvious use for anyone who works in more than one place, and one non-obvious one. A Focus that turns on at home is a way to make the boundary real in the direction people usually neglect, which is keeping work from following them.

Focus Filters change what apps show, not just whether they notify

This is the part of Focus that is genuinely underused. A Focus filter changes the behaviour of an app while the Focus is active, rather than just suppressing its notifications. Apple documents filters for four apps, added from the Focus Filters section with Add Filter.

The Calendar filter selects which calendars are visible while the Focus is on, which is how a personal calendar disappears during work hours without being unsubscribed. The Mail filter selects which email accounts are shown, which does the same for a second inbox. The Messages filter turns on Filter by People List. The Safari filter chooses a Tab Group to show, with a separate switch for whether external links open in that Focus Tab Group.

Filters can be changed later, turned off temporarily with the button at the top of their window, or removed entirely with Delete App Filter at the bottom.

The Mail filter is the one that changes a working day most, because hiding a second account is far more effective than silencing it. A silenced inbox is still one click away and still shows an unread count. A hidden one is not there.

Where the model breaks: several web apps, one browser

Everything above operates on applications. That is the limit, and it is a significant one now that a large share of work tools are web pages.

When chat, mail, a project tracker and a document tool all run as tabs in one browser, Allowed Apps can only name the browser. Allowing it lets all four through. Not allowing it silences all four. There is no configuration that permits the one that matters and silences the other three, because macOS is not being shown three things.

The Safari Tab Group filter is the closest built-in answer, and it only helps in Safari. Nothing equivalent exists for other browsers, and none of it addresses the other half of the problem, which is that all four remain open and reachable whether they notify or not.

The structural fix is to present each web app to macOS as its own application. A browser that keeps every web app in its own window means each one appears separately in Focus settings, so a Focus can allow the one and silence the rest, exactly as it would for native apps. Grouping them into workspaces for work and everything else handles the reachability problem in the same move, and the tools in this category are built around that separation rather than around tabs.

Sharing the Focus so the allow list is not needed

An allow list decides what gets in. Status sharing decides what happens to everyone kept out, and the two work together.

Apple states that when Focus status is shared, people who send a message know that notifications have been silenced, and that if something is important they can choose to notify anyway. That override is what makes a short allow list safe to use. The list no longer has to anticipate every urgent case, because the person with the urgent case has a route that does not depend on being on it.

Focus also travels. Apple notes that when Focus is kept up to date across Apple devices, turning one on or off on the Mac does the same elsewhere, and that changes made to a Focus on the Mac are reflected on the other devices. A Focus built carefully once therefore applies everywhere, which is the argument for spending ten minutes on the allow list rather than two.

The automatic option, and its conditions

macOS also offers a version of this that decides for itself. Apple describes Intelligent Breakthrough and Silencing, which when turned on allows important notifications to interrupt and silences ones determined not to be important, while notifications that have been specifically allowed or silenced always keep the behaviour that was set for them. There is also a Reduce Interruptions Focus, which shows only the most important notifications and has this behaviour permanently enabled.

Two caveats belong with that. Apple states that this depends on Apple Intelligence, which is not available in all languages or regions and may be subject to usage limits. And the explicit lists still win, which means a hand-built Allowed Apps list is not replaced by the automatic behaviour. It is the thing the automatic behaviour defers to.

What to change first

Open Focus settings, pick the Focus that gets used most, and switch its Allowed Apps from Silence Some Apps to Allow Some Apps with no more than four entries. That one change converts Focus from a list that needs constant upkeep into one that stays correct on its own. Then attach it to an app based schedule so it starts and stops with the work. For the web apps that a Focus cannot tell apart because they share a browser, SpaceDeck gives each of them its own entry in that list.