Never works
Response from developer
We sincerely apologize for the troubles you've had with the app. We'd be happy to take a look into this for you, please contact us at support@petsapp.com. Thank you.
Update = Start Over?
Response from developer
Hi there! Thanks for taking the time to leave us a review. You wont need to recreate your account or all of your pet profiles once the app has updated, it might be because you have been logged out? We'll be happy to help you get back into your account, please send us an email at support@petsapp.com and we'll be able to investigate for you! Ollie