Halide - A premium camera for your phone
CSSCO - VSCO Filters with CSS
Camera+ - With Camera+ you’re able to use your iPhone to shoot the best photos you possibly can.
CSSGram - Recreate Instagram filters with CSS filters and blend mode
NightCap Camera - NightCap Camera is an exceptional tool that is used significantly in low light and night time to make dark photos looks like they were made in full light, developed in the market by Realtime Dreams Limited Inc.
RNI Films - Real film filters for iPhone photographers