PaintBerri - PaintBerri is a free art site that offers an awesome oekaki community.
Open Camera - Open Camera is an open-source camera app for Android phones and tablets.
okekai - A small community site where you can draw, animate, and chat through pictures all for free
Secure Camera - Modern camera app focused on privacy and security with QR & barcode scanning.
Brush Ninja - Hand-drawn Animated Gif Creator
PhotonCamera - Android Camera that uses enhanced image processing.