A free app for Android, by Synced Synapse.
Photo Calendar Widget is an elegant widget for your home screen or lock screen. It allows you to view your photos in a new way: as a calendar, with a new picture every month.
It is a simple and easy-to-use application. To use it, you will only need to enter a code that identifies the calendar you want to display. You can adjust the size of the widget as needed.
You can select photos from your gallery or from online platforms such as Instagram, Picasa, Google+, Dropbox, and more.
The widget is a simple and elegant way to share photos with your friends and family members.