Recall is a productivity application designed for iPhone users, enabling them to summarize and save various online content types into a personal knowledge base. This versatile tool supports summarization of YouTube videos, articles, podcasts, PDFs, recipes, and movie lists, ensuring that users can compile and access essential information easily. The application categorizes these summaries automatically, allowing for straightforward retrieval and organization within the knowledge base.

Beyond simple summarization, Recall enhances knowledge retention through advanced techniques such as Spaced Repetition and Active Recall. Users can review their saved content strategically, with the app scheduling reviews at optimal intervals to promote long-term memory retention. Additionally, Recall generates questions from the saved summaries, further reinforcing knowledge and comprehension. This combination of summarization and review makes Recall a powerful tool for anyone looking to manage and retain information effectively.