Cluster

Cluster is a private group sharing application designed for friends and family to share photos and memories away from public social media. It allows users to create private groups, share content, and receive notifications about new posts, accessible via web, iOS, and Android.

Cluster is a private group sharing app for photos and memories, which aligns with the idea's goal of sharing memories. It offers private groups and sharing of photos and videos, which can be considered a form of 'shared timelines' or collections. The emphasis on privacy and sharing with chosen people also aligns with the 'privacy controls' and the general idea of controlled sharing. However, it lacks the specific AI-driven memory prompts, relationship nudges, and infographic/quiz generation that are must-have features for 'Remember This'. It's more of a general private photo sharing platform rather than a memory-prompting and relationship-strengthening tool based on photo analysis.