Why does iPhone's Reminder App not show on home screen?

1. Why can't I see Reminders app on my iPhone?
2. Why are my Reminders not showing up on my screen?

Why can't I see Reminders app on my iPhone?

Open Settings app and tap Notifications. Scroll down and tap Reminders. Here make sure that Allow Notification is turned on.

Why are my Reminders not showing up on my screen?

Make sure the app is up to date, and then try Google Reminders again. Clear the app cache data. The app cache data can become large or corrupted over time, which might interfere with your Reminder notifications. Clear the cache data for Google Reminders, and then try using the app again.