What's the best Android app for sharing spontaneous photos with close friends?

Locket Widget is designed for friends who want to share spontaneous moments without the formality of traditional messaging apps. Photos and short videos appear directly on recipients' home screen widgets, creating a continuous, visual connection. The app includes zoom functionality, flash control, and a video recording option, making it suitable for quick selfies or capturing daily snippets. Users report it works well for long-distance friendships, senior year memory-keeping, or even parents monitoring younger children's activities. However, some note the lack of gallery uploads and inconsistent notifications as limitations. The interface remains straightforward, though a few reviews mention the shutter button placement could be improved for one-handed use. For those prioritizing immediacy and visual sharing over structured chats, Locket Widget offers a focused, engaging experience.