A 20-Minute Phone Notification Cleanup

The average smartphone user receives dozens of notifications a day, and some heavy users receive hundreds. Each one is small. Together they shape the day more than most people realize.

Gloria Mark, a researcher at the University of California, Irvine, has studied workplace interruptions for two decades. Her team found that after an interruption, people took an average of about 23 minutes to get back to the original task, partly because they usually handled two other things on the way. Her later work found that people's attention on a screen now shifts every 47 seconds on average. Not every notification causes a 23-minute detour, but even a glance at the lock screen pulls focus away.

Fewer interruptions also seem to help how people feel, not just how much they get done. In a 2019 study led by Nicholas Fitz and Kostadin Kushlev, people whose phones delivered notifications in three batches a day reported feeling more attentive, more productive and less stressed than people who received them as they arrived. Interestingly, people who turned notifications off completely felt more anxious about missing something, which suggests batching works better than an all-or-nothing approach.

The fix isn't to turn everything off. It's to decide, once, which apps have earned the right to interrupt you. Here's a 20-minute audit that works on any phone.

Step 1: See what's actually arriving

On iPhone, go to Settings and then Notifications. On Android, Settings, then Notifications, shows which apps sent the most alerts recently. The list is usually surprising: shopping apps, games and news apps you barely open often top it.

Step 2: Sort every app into three groups

Interrupt me: calls and messages from people, calendar reminders, two-factor codes, anything time-sensitive.
Tell me later: email, social media, news, deliveries.
Never: games, shopping, promotions, apps that send "We miss you!" messages.

Step 3: Apply the groups

Turn off notifications entirely for the "never" group. For the "later" group, use a notification summary: iPhone's Scheduled Summary and Android's notification settings can bundle these into one or two deliveries a day. Turn off sounds and badges, the red counters on app icons, for everything that isn't in the first group.

Step 4: Set up a focus mode

Focus modes (iPhone) and Do Not Disturb or Modes (Android) let you choose which people and apps can break through at certain times, such as working hours or evenings. Set one up for the time of day when your attention matters most.

Step 5: Say no by default

When a new app asks to send notifications, decline. If you miss something important, you can always turn them on later.

Step 6: Use the finer controls

Many apps send several kinds of alerts, and you don't have to accept or reject all of them together. On Android, tapping an app in the notification settings shows its individual categories, so you can keep delivery updates from a shopping app while turning off its promotions. On iPhone, many apps offer the same choices in their own settings menus. Email apps let you be notified only for chosen senders, such as the VIP list in Apple Mail.

Signs your phone has trained you

Phantom vibrations: feeling your phone buzz when it hasn't. Surveys of students and medical staff have found that most respondents experience this at least occasionally.
Checking without a reason: unlocking the phone, looking at the home screen and putting it down again.
Reaching for the phone in any pause: queues, ad breaks, the seconds while a kettle boils.

None of these is a disorder. They're ordinary habits formed by thousands of small rewards. A couple of practical counterweights: keep the phone in another room while you work on something that needs focus, and try grayscale mode, available in both iPhone and Android accessibility settings, which makes colorful app icons and badges noticeably less tempting.

Most people who do this find their phone feels noticeably calmer within a day, without missing anything that actually mattered.