PhotoDemon - Lightweight portable BSD licensed photo editor for Windows focused on performance and usability.
King Camera - Cam 360 Selfie Camera, King Camera is one of best, a professional selfie camera app that takes beautiful selfies in seconds with effects filters.
PhotoFlare - Quick, simple but powerful Cross Platform image editor.
360 Camera - Capture 360 photos and videos with your Android device, 360 Camera is one of the most leading camera apps that allows you to enjoy all in one photography experience.
PixBuilder - Free Photo Editing Software for PC
Open Camera - Open Camera is an open-source camera app for Android phones and tablets.