Hellopet is a free lifestyle app available for Android users. It allows you to have interactive pets on your phone's home screen by using screen overlay technology. You can choose from a range of cats, dogs, and other cute animals and unlock new pets, items, and rooms by collecting or buying cookies. The app also features a mini-game called "I'm Hungry!" where you can feed your pets by clearing levels and collecting hearts. You can share your creations with other users in Pet Chat, visit friends' rooms, and leave messages in their Guestbook. The app also provides up-to-date weather, time, and battery alerts. Overall, Hellopet is a fun and social app for animal lovers who want to have a friendly companion on their phone.