A free app for Android, by App9.
Collage Maker 2019 is the best free app for those who want to create great-looking collages for social networks like Instagram, Facebook, and Twitter. The app lets you stitch your photos so you don’t have to upload them individually. You can even choose from over 120 different templates to get started.
Collage Maker 2019 is easy to use. Simply choose a template, then add your photos and other elements. You can add text, stickers, and even cartoons. There are even more ways to customize the layout of your collage. After this, you can use basic photo editing tools to tweak the final product – or the individual photos you have selected for the project.