A free app for Android, by Battler Dev.

Do you want to create a collage of your most beautiful photos? Look no further than the Picture In Picture Studio Free app. This photo-editing app will help you put all your best pictures in one frame. It offers a great collection of filters and layouts to design your collage. You can also enhance the quality of your picture with its built-in editing tools, such as brightness, color, and balance.

The app is easy to use: you only need to select the photos for your collage, pick the layout of your choice, apply your preferred filter, and save the finished product on your phone gallery. You can even share it on social media.