I have been using an app called, Mind Jogger. There are a. If you are planning to throw a Disney Frozen themed birthday party for your princess then we have some fabulous tips that might help. I have been using an app called, Mind Jogger. . There are a. There are apps you can download that will remind you to check in throughout the day. If you are planning to throw a Disney Frozen themed birthday party for your princess then we have some fabulous tips that might help. There are apps you can download that will remind you to check in throughout the day.