If you're looking for an easy-to-use and free collage editor for your Android phone, Photo Collage - Collage Editor is a great option. With over 120 collage templates and frames, 150 background colors and patterns, and a range of photo editing tools, this app makes it simple to create beautiful collages without any photo editing skills.

One of the best features of this app is the ability to edit your photos with filters, effects, and overlays. You can also add text and stickers to your collages, and use the PIP photos feature to mirror your images with amazing effects. Once you've created your collage, you can save it in HD quality and share it with your friends and family via Facebook, Instagram, WhatsApp, and more.

Overall, Photo Collage - Collage Editor is a powerful tool for anyone who wants to make stunning pic grids and collages on their phone. With its user-friendly interface and range of features, it's a great choice for both beginners and more experienced users.