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Brainwidth is a planner for iPhone that gives every event and task a Brainwidth Score, the share of a full day’s mental energy it will take, and adds them up so you can spot an overloaded day while it’s still just a plan. Daily, weekly and monthly capacity show when a day has room for more and when it’s time to move something. It also includes a full calendar, tasks, routines, goals, a Focus Timer, an app for Apple Watch and a Home Screen widget.

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A calendar shows when things happen. It can’t tell a two-hour board presentation from a two-hour coffee. Brainwidth uses the same events, synced from Apple Calendar or Google Calendar, and adds how much each one will take out of you. That’s what shows you an overloaded day before you’re in it.

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Open Brainwidth and follow the short tutorial. Allow access to Calendars and Reminders so your existing events and to-dos appear, and connect Google in Settings if you use Google Calendar or Google Tasks. Then give a few of today’s events a score and open the Brainwidth Dashboard from the Home tab. You can replay the tutorial any time from Settings → Quick Tutorial.

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An iPhone running iOS 26.2 or later. The Apple Watch app needs watchOS 26.2 or later and works alongside Brainwidth on your iPhone. There’s no iPad, Mac, Android or web version, and the app is in English. Outlook and Exchange calendars appear when that account is set up on your iPhone. Auto Estimate uses Apple Intelligence on iPhones that support it, and a built-in formula on the rest.

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Yes. In Settings → View Settings, turn tabs on or off and drag them into the order you like. The Home tab’s sections follow the same order.

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It shares the idea. Christine Miserandino’s spoon theory describes a limited supply of energy each day, with every activity costing some of it. Brainwidth applies the same arithmetic to your calendar: each event and task gets a share of a full day, and the total shows when you’ve planned more than you have. It’s a planning tool, not a medical one.

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Time blocking gives each task its own slot on the calendar. Brainwidth leaves your calendar as it is and adds how much each item will take out of you, so you can see when a day that fits on the calendar won’t fit in your head. The two work well together.

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Some apps estimate the energy you have, from sleep or a wearable. Brainwidth looks at the other side: what your day will take. Every event and task gets a score from 0 to 100, scores add up across your Apple and Google calendars and tasks, and Auto Estimate suggests scores on your iPhone and learns from your corrections.

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Brainwidth isn’t a medical or ADHD tool. If time-based plans tend to fall apart for you, scoring how draining each item is can make a heavy day visible before it starts, and Auto Estimate can suggest the scores so there’s less to set up.

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Mental load usually means the invisible work of remembering and organizing, often at home. Brainwidth doesn’t measure it directly, but tasks like “Book dentist” or “Plan next week” can carry a score like anything else, so that work shows up in your day instead of hiding behind it.

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A number from 0 to 100 for how much of one full day’s mental energy an event or task will take. As a guide: a quick email check is about 2 to 5, a one-hour team meeting 10 to 18, two hours of focused deep work 18 to 28, a high-stakes presentation 25 to 35, and an all-day workshop 40 to 60. You set it with the slider in the event or task editor.

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No. New events, and tasks you create or import from Reminders, start unscored and don’t count until you give them a score, so scoring only the two or three things that drain you is a perfectly good way to use Brainwidth. Tasks imported from Google Tasks arrive with a starting score of 50, which you can change or clear. Choose "Do Not Assign" for anything you never want counted, and the dashboard can list what’s still unscored if you want to catch something important.

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Turn on Auto Estimate in Settings (the switch reads "Enable Auto-Estimate"), then tap Auto Estimate in the editor. Brainwidth suggests a score from the title, length, invitees, location and notes, using Apple Intelligence on your iPhone; nothing is sent to a server. If you move the slider more than a few points after an estimate, Brainwidth remembers the correction and, after a few of them, adjusts future estimates for that kind of work. Settings shows how many corrections it has learned, and you can reset them there.

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They describe how much of your capacity a day, week or month is using: Light is under 30%, Moderate 30 to 60%, Good 60 to 90%, Full 90 to 120%, and Over is 120% and up. Separately, insights let you know as soon as a day goes past 100%.

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Tap the capacity bar on the Home tab to open it. Switch between Daily, Weekly and Monthly to see your capacity, a summary (events, tasks, your heaviest items, which the app calls High Load, total score, daily average, peak and lightest days) and insights with quick actions, such as assigning scores to unscored items or updating overdue tasks.

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Routines and goals don’t carry scores. Tasks count on the day they’re due. Tasks without a due date aren’t counted, and the dashboard can list them for you.

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Yes. Turn off the Enable Brainwidth switch to hide scores and the dashboard and use the app as a plain calendar, task list and habit tracker.

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Yes, with two-way sync. Every calendar on your iPhone appears, including iCloud, Exchange and subscribed calendars. Changes you make in Brainwidth appear in Calendar and the other way around. Allow access in Settings → Privacy & Security → Calendars.

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Yes. Go to Settings → Events and turn on Sync with Google Calendar, sign in with Google and pick your calendars. You can create, edit, move and delete Google events from Brainwidth, and add Google Meet links. If the same Google calendar is also on your iPhone through iOS, Brainwidth hides the duplicate.

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Check that Brainwidth is allowed in Settings → Privacy & Security → Calendars, and that Calendars is turned on for your account in Settings → [your name] → iCloud (or in Settings → Calendar → Accounts for other accounts). For Google, make sure Sync with Google Calendar is on and your calendars are selected; Google events need an internet connection. Closing and reopening Brainwidth forces a refresh.

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Daily, weekly, every 2, 3 or 4 weeks, monthly, quarterly and yearly, plus every weekday, every weekend, custom days of the week, and monthly patterns like the first Monday or the last weekday. When you edit a repeating event, choose This Event Only or All Future Events.

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Yes. Brainwidth recognizes Zoom, Google Meet, Microsoft Teams, Webex and FaceTime links, can create a Google Meet or FaceTime link for you, and opens directions in Apple Maps, Google Maps, Waze or Transit. You can also add rich-text notes, photos and files. Attachments stay on your iPhone and aren’t uploaded to Apple or Google.

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Yes. Open the event and tap Duplicate Event to start a copy with the same details.

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Brainwidth sends its own alerts, and the Calendar app can send one too. To only hear from Brainwidth, go to Settings → Calendar → Notifications on your iPhone and turn off Allow Notifications for Calendar.

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Tasks are to-dos with optional due dates, priorities, subtasks, links, locations and attachments. They sync both ways with Apple Reminders, and with Google Tasks if you connect it. Use the All, Today and Scheduled views to see what’s next.

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Events happen at a set time, like meetings and appointments, and sync with your calendars. Tasks are things to get done, with or without a due date, and sync with Reminders or Google Tasks. Routines are habits you repeat on a schedule, like reading or a morning walk. Events and open tasks can carry Brainwidth Scores; routines don’t.

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Yes, with two-way sync including subtasks. Choose which Google Task lists to include in Settings → Tasks → Task Settings. You can also create, rename and delete lists.

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Choose Manual, Due Date or Alphabetical sorting in the Tasks tab. In Manual mode, touch and hold a task and drag it where you want it. The order carries over to the Home tab and the widget.

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Add an alert when you set a due date. For tasks with a date but no time, alerts are based on 9:00 AM, so a "1 hour before" alert on a task due tomorrow arrives tomorrow at 8:00 AM. Task notifications have View and Mark Complete actions; event alerts also have Snooze.

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Habits you want to keep, scheduled daily or on chosen days of the week. Start from one of 28 presets, like Morning Meditation or Review Finances, or make your own with an icon and color, then check them off on the Home tab or Apple Watch.

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A goal is built on a routine. Choose Streak to complete it on consecutive scheduled days, or Duration to complete it a set number of days. If a routine only runs on certain weekdays, only those days count.

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Not if you catch it. Use "Forgot to mark a day?" on the goal to redeem a missed scheduled day. Each goal allows up to three redeemed days.

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Yes. Edit the goal and choose Reset Goal to clear its progress and start again. The goal itself stays.

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Collections group calendars, task lists, routines and goals under one name and color, such as Work, Family or Health. Turn on Apply Collection Color to use the collection’s color for everything inside it. Find them in Settings → Brainwidth Collections.

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Open an event, task or routine and choose Start Focus Timer. Pick any length from 15 minutes to 4 hours in 15-minute steps, or set a custom time up to 12 hours. The countdown appears on your Lock Screen and in the Dynamic Island on supported iPhones, you can pause or add 5, 10 or 15 minutes, and you’ll get a notification when the session ends. One timer runs at a time.

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Swipe between today’s events, today’s tasks (check them off), today’s routines and your goals. It stays in sync with your iPhone.

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Yes. The Brainwidth Calendar widget shows today’s date in the small size. The medium size adds a list you can flip between events, tasks and routines, and tapping an item opens it in the app.

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Make sure notifications are allowed in Settings → Notifications → Brainwidth, and that an alert is set on the event or task. Focus modes can also silence them. If you skipped the permission during setup, you can turn it on in your iPhone’s Settings.

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No. There’s no Brainwidth account. Signing in with Google is optional and only used to sync Google Calendar and Google Tasks.

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On your iPhone. Scores, routines, goals, collections, attachments and settings are stored on your device; Brainwidth has no server. Events and tasks also live in the calendar and reminder services they sync with (Apple or Google). Brainwidth data doesn’t sync to your other devices, but it’s included in your regular iPhone backup.

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Only what you allow: Calendars and Reminders to show and sync your events and to-dos, Contacts to invite people, your location while using the app to search places, and notifications for alerts. If you connect Google, Brainwidth talks directly from your iPhone to Google to sync your calendars and tasks. There’s no advertising, analytics or tracking in the app.

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Mostly. Your schedule, scores, routines and goals work without a connection. Syncing with Google, place search and maps need the internet.

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Deleting the app removes everything Brainwidth stores. To revoke Google access, visit myaccount.google.com/permissions. The Delete your data page has every step.

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