-picsart
you can add cute stickers to your photos!! there are millions to choose from. also, to get the photobooth hearts, just type in "photobooth" in the sticker search
-vsco
a great filtering app!! you can adjust the exposure, contrast, etc! you can also add grain
-polarr
this app can do a lot, but i only use it for the 3d effect. this app is super confusing at first. but if you go to tools, add "effects", turn down fringing (i wouldn't do less than -25), and then mess with the lighting untill it looks good
-line camera
you can do a lot with this app! i only use it to draw on my pictures, but you can add sparkles or stickers
-phonto
you can add words to your pictures using this app. to get cute fonts you can download them from dafont.com
i'm not saying you have to use all of these but these are good suggestions if you want a certain thing on your pictures! ly all💕