A free program for Android, by CreativeStarApps.
This application is one of the best and most complete photo editing and birthday collage maker apps on Google Play. If you are looking for a simple and easy-to-use application to make a beautiful greeting card, this application is perfect for you.
It is a very simple application, which allows you to choose a background, add a photo or multiple photos, choose a font, and write text on the photo. You can also choose from a wide variety of birthday themes. The best thing is that you can add different types of stickers, such as a smiley face, a heart, a party, etc.
The best thing is that you can change the opacity of the birthday collage pic.