If you ever need to update the age of your pet on their pet profile, you can easily do so via the Crumb App. Here's how:
Open up the Crumb App
Click on the pet whose age you want to update:
Select "Edit Pet Details":
Update their date of birth:
Save!
If you need to make any other changes to their profile, such as the notes, allergies, etc. you can do so at this time.