Where to find reminders on the devices you already own

Every major phone, computer, and calendar service has a built-in reminder tool. You do not need to download anything new. On an iPhone, reminders live in the Reminders app. On Android, Google Tasks and Google Calendar both have reminder features. On Windows, the Calendar app includes reminders. On Mac, the Reminders app works the same way as iPhone. If you use Outlook, Gmail, or Apple Calendar, you can set reminders directly inside those programs without switching to a separate tool.

The fastest way to add a reminder is usually through the app you already check most often. If you live in your email inbox, set reminders in Gmail or Outlook. If you check your calendar daily, use the calendar app itself. If you prefer a dedicated list, use the Reminders or Tasks app on your phone.

Key Takeaways

  • iPhone, Android, Windows, and Mac all include free reminder apps built into the operating system — you do not need to buy or download anything.
  • You can set a reminder to go off at a specific time, on a specific date, or when you arrive at a location, depending on your device.
  • Reminders sync across your devices when you use the same account — an iPhone reminder appears on your Mac, and a Gmail reminder appears on your computer.
  • Setting a reminder takes 10 to 20 seconds and requires only the task name and when you want to be reminded.

How to add a reminder on iPhone or iPad

Open the Reminders app (the icon looks like a checklist). Tap the plus sign in the top right corner. Type what you want to be reminded about — for example, "Call the dentist" or "Pay electric bill". Tap the info button (the circle with an "i" inside) to set when the reminder should go off. Choose a time, date, or location. Tap Done.

You can also ask Siri to create a reminder by saying "Hey Siri, remind me to [task] at [time]." Siri will confirm what you said and create the reminder without you opening the app.

How to add a reminder on Android

Open Google Tasks or Google Calendar, whichever you use more often. In Google Tasks, tap the plus sign and type your task. Tap the task again to set a date and time. In Google Calendar, create a new event, type the task name, set the date and time, then tap "Notification" to turn on a reminder. Both will send you a notification at the time you chose.

You can also say "Hey Google, remind me to [task] at [time]" to create a reminder hands-free. Google Assistant will repeat back what it heard and set the reminder.

How to add a reminder in Gmail or Outlook

Open an email you want to follow up on. In Gmail, click the snooze icon (arrow pointing down) or the three-dot menu and select "Add a reminder". Choose when you want to see the email again — later today, tomorrow, next week, or a custom date. The email will reappear in your inbox at that time. In Outlook, right-click an email and select "Flag" or "Follow Up", then choose when to be reminded.

This method works well if you need to act on something inside an email. The reminder brings the email back to the top of your inbox instead of creating a separate task.

How to add a reminder in Apple Calendar or Google Calendar

Open the calendar app and create a new event. Type the event name and set the date and time. Scroll down to find the "Alert" or "Notification" section. Choose how long before the event you want to be reminded — 15 minutes before, 1 hour before, 1 day before, or a custom time. You can add multiple reminders to the same event. Tap Save.

Calendar reminders are useful for appointments, meetings, and time-sensitive tasks. You can set one reminder to alert you the night before and another for 30 minutes before you need to leave.

Location-based reminders and other options

iPhone Reminders and Google Tasks both support location-based reminders. Instead of setting a time, you can choose "When I arrive at" or "When I leave" and pick a location. Your phone will remind you when you reach that place. This works for tasks like "Buy milk" when you arrive at the grocery store or "Call Mom" when you leave work.

You can also set reminders to repeat daily, weekly, or on specific days. In the Reminders app, tap "Custom Repeat" to choose a pattern. In Google Tasks, tap the task and select "Repeat" to set it to recur. Repeating reminders are helpful for chores, medications, and regular check-ins.

How reminders sync across your devices

If you use the same account on multiple devices, your reminders appear everywhere. An iPhone reminder created in the Reminders app shows up on your Mac and iPad. A Google Task created on your phone appears on your computer. An Outlook reminder syncs between your phone and desktop. This happens automatically — you do not need to do anything to make it work.

If you use different accounts on different devices, reminders will not sync. For example, if you use your work email on your computer and your personal email on your phone, reminders created in work Gmail will not appear in personal Gmail. Check which account you are signed into before creating a reminder you need to see everywhere.

Frequently Asked Questions

Can I set a reminder without specifying a time?

Yes. In the Reminders app on iPhone or iPad, you can create a reminder with just a task name and no time — it will appear in your list but will not send a notification. In Google Tasks, reminders without a date stay at the top of your list. This works for tasks you want to track but do not need a specific alert for.

What happens if I dismiss a reminder by accident?

The reminder is marked complete and will not alert you again. You can undo this by opening the Reminders or Tasks app and unchecking the task, or by tapping "Undo" immediately after dismissing it. If you need the reminder to go off again, you can edit it and set a new time.

Can I share a reminder with someone else?

Yes, but only in certain apps. In Apple Reminders, you can share a list with another person who has an Apple device. In Google Tasks, you can share a task list with others who have a Google account. Outlook reminders cannot be shared. The person you share with will see the same reminders and can check them off.

Why is my reminder not going off?

Check that notifications are turned on for the Reminders, Calendar, or Tasks app in your phone's settings. Make sure your phone is not in Do Not Disturb mode. Verify that the reminder time is set correctly — it may be set for a date that has already passed. If the app is not open, the reminder should still alert you, but some devices require the app to be installed and updated.

Can I set a reminder for something that repeats?

Yes. In Reminders or Google Tasks, you can set a task to repeat daily, weekly, monthly, or on specific days of the week. Each time the reminder goes off, you can mark it complete, and it will reappear at the next scheduled time. This is useful for recurring tasks like taking medication, paying bills, or weekly meetings.