For simplicity, power and the best integration with various calendar sources, Google Calendar is the way to go.

Best overall

Google Calendar

Google Calendar

See on Google Play

Google's own calendar app has been refined over the years to a point where it's both elegant and functional. And it's not just for Google stored calendars, either, with support for "all calendars on your phone, including Exchange."

Some of the nifty features on hand include a schedule view with photos and maps of places you'll be heading to, smart suggestions on places, people and the ability to create calendar events based on reservations for things like flights and restaurants that appear in your Gmail inbox.

If it didn't already come pre-loaded on your phone, you can get it for free.

Bottom Line: If you're looking for a calendar that covers all the bases then Google Calendar is a top pick.

One More Thing: Google Calendar also jives well with Google Assistant, making it an especially good choice if you've got a Pixel or Pixel XL.

Why Google Calendar is the best

Sometimes stock is more than enough. Google's calendar app is more than capable to handle all your scheduling needs, while keeping things simple and clean.

With the power of Google behind it, this app is smart enough to suggest titles, contacts and places as you type in your event information. It will also automatically scan your Gmail and add reservations for flights, restaurants and more if you allow permission for it. Essentially, if you've enjoyed using other Google products and apps, you'll be more than happy with everything that Google has included here.

Best for email integration

Microsoft Outlook

Microsoft Outlook

See on Google Play

Not the first app you might think of when looking for a calendar, but the truth is that Microsoft Outlook on Android is really good. It combines your email, including Gmail, and calendars, including Google, inside one app so you can manage both in one hit.

Microsoft recently acquired the hugely popular Sunrise Calendar, and it has been fold into its Outlook apps. That combination of Sunrise smarts and Outlook power has produced something worth checking out.

Bottom-line: Microsoft Outlook is a good option if you want to access your email and calendar all in one place.

One more thing: Event icons are just one of the features that the Sunrise team has brought into the fold. Try typing "coffee" or "lunch" the next time you create an event and just see what happens in your agenda view.

Best design

SolCalendar

SolCalendar

See on Google Play

SolCalendar is described as a "life management tool" and it's not far from the truth. Besides a whole bunch of different calendars, Sol will pull in weather reports, sync with Google Tasks, supports Google Maps and Foursquare integrations, Lunar Calendars and more.

And it's all wrapped up into an elegant and intuitive user experience that also boasts some fancy looking home screen widgets, too.

Bottom-line: SolCalendar features a beautiful design and is considered one of the best alternatives to Google Calendar.

One more thing: Use stickers to add some fun flair to your calendar.

Best overall

Google Calendar

Google Calendar

See on Google Play

Google's own calendar app has been refined over the years to a point where it's both elegant and functional. And it's not just for Google stored calendars, either, with support for "all calendars on your phone, including Exchange."

Some of the nifty features on hand include a schedule view with photos and maps of places you'll be heading to, smart suggestions on places, people and the ability to create calendar events based on reservations for things like flights and restaurants that appear in your Gmail inbox.

If it didn't already come pre-loaded on your phone, you can get it for free.

Bottom Line: If you're looking for a calendar that covers all the bases then Google Calendar is a top pick.

One More Thing: Google Calendar also jives well with Google Assistant, making it an especially good choice if you've got a Pixel or Pixel XL.