Vacations, Birthdays, and More: Here’s How to Easily Create a Photo Collage with Your iPhone

Last weekend, I sat down to sort through our vacation photos, and suddenly I had an idea: Why not create a little collage of my four favorite photos—from the beach, the sunset, the day trip, and the cozy dinner? Four photos in one image file: I wanted to see all those memories at a glance and share them with friends. Surprisingly, it was much easier than I thought—and best of all, I didn’t even need an expensive app to do ...