How to backup contacts and calendar from Apple iPhone 11 Pro Max

We used PhoneCopy.com service for this guideline. Using it, your can backup your contacts from your Apple iPhone 11 Pro Max easily. The whole backup, including the settings, can be done in several minutes.
Register
Run the app and create new account.
PERMISSIONS
Then you need to allow PhoneCopy access to your contact list and select contacts which will be synchronized
You can synchronize photos and videos too. Please note that the authorization of photos or videos is not required. If you will not grant it, PhoneCopy will only synchronize your contacts.
Let's synchronize!

Your data is now safe on PhoneCopy. The service stores a full copy of your contacts online, so you can access them from any device or restore them whenever needed.
Some additional tips:
The free PhoneCopy plan allows you to store up to 500 contacts, which is more than enough for most users. A premium plan is available if you need to sync more data or use advanced features.