Google Calendar Review: The Calendar App You Already Use, and the Features Most People Don’t

Google Calendar is preinstalled on every Android phone. Most people use it to see their meetings and never touch the other 80% of the app. This Google Calendar review is about the features hidden in plain sight, the settings worth changing once, and where a different calendar app is actually better.

What Google Calendar does well by default

Multiple calendars in one view. Your personal calendar, your work calendar (if it’s a Google Workspace or Exchange account), your partner’s shared calendar, and a public calendar like holidays — all overlaid with different colors. Toggle each on and off with a tap. This is the killer feature and it’s on by default.

Smart event creation. Type “Dinner with Sara Friday 7pm” in the quick-add box and Calendar creates the event with the right time, right title, and even auto-invites Sara if she’s in your Contacts. Works remarkably well.

The features people don’t know exist

Goals. Tap +, then Goal, and Calendar will find open slots in your week to schedule something you want to do more of — running, reading, a language. It reshuffles automatically when you decline an occurrence. Underused feature that actually works.

Working hours. Set your work start and end times in settings, and Calendar will auto-decline or flag meeting invitations that fall outside them. Combined with “Focus time” (a special event type), this is a proper boundary-enforcement tool for people whose calendars fill up with meetings.

Appointment schedules. Create a bookable slot page — think Calendly, but built into Google Calendar. Share the link, people book a time from your available slots, event lands on your calendar automatically. Free for anyone with a Google account. Most people don’t realize this is a Calendar feature.

Notifications — the setting worth changing

By default Google Calendar sends a notification 10 minutes before every event. On a busy calendar this is noise. Change the default in Settings → General → Notifications to something more useful: 30 minutes for regular events, 1 day for events with travel, or off entirely and set them per-event. Small change, big quality-of-life difference.

Widgets and quick views

The Google Calendar widget on your home screen showing today’s agenda is the fastest way to check “what’s next” without opening the app. Long-press an empty spot on your home screen → Widgets → Calendar → pick “Schedule” or “Month view.” Adjust size, drop it. Better than opening the app for the 30-second glance most people actually want.

Integration with other Google services

Gmail auto-adds flight, hotel, and restaurant reservations to your calendar when you get a confirmation email. Google Maps shows travel time to your next event. YouTube adds premieres you set reminders for. This deep integration is why Google Calendar wins for Android users — the whole ecosystem talks to it.

Where Google Calendar falls short

Complex meeting scheduling across multiple people with different availability. Calendly, Doodle, or Cal.com beat Google’s own Appointment Schedules here. If you schedule a lot of meetings across time zones and calendars you don’t own, use a dedicated tool.

Deep customization of the visual layout. Fantastical (iOS) and Business Calendar (Android) both offer more layout options, better week views, and more color coding. If you live in your calendar all day, one of these might be worth trying.

Privacy — the honest note

Everything in Google Calendar is on Google’s servers. Google can technically read your event titles and locations. Google says they don’t use Calendar contents for ads, but the data is there. If you have events with sensitive titles (medical appointments, therapy, personal matters), consider making the event “Private” so shared calendars don’t leak them — the setting is per-event.

Should you use Google Calendar?

Almost certainly yes — it’s already on your phone, syncs everywhere, and the ecosystem integration alone makes it the right choice for 95% of Android users. Change the default notification setting once, add the widget, and use one of the hidden features (Goals or Working hours) for a week. That’s the whole optimization pass and it makes the default calendar app significantly more useful.