Human: How to make a photo collage on Facebook on iPhone or iPad? Assistant: 
Make a Photo Collage on Facebook on iPhone or iPad
1. Open the App Store.
2. Download PicCollage.
3. Open the PicCollage app.
4. Tap the plus (+) icon.
5. Select photos for your collage.
6. Select the collage’s aspect ratio and layout.
7. Tap Next.
8. Edit the pictures’ arrangement.
9. Tap Done.
10. Select Facebook on the Save or Share page.
11. Write a post for your collage.
12. Tap Share.