FullRecall vs Khan Academy

FullRecall helps users retain knowledge through scheduled reviews of question-and-answer pairs. Users can write their own material or import data from collections and other databases. After a review, users rate how well they remembered an answer; the software combines that feedback with prior repetitions to schedule the next review, using a neural network that learns the user's forgetting curve. The free plan has no limit on item count or total database size, but questions and answers are each limited to 8192 bytes and category names to 128 bytes. The PC version supports Unicode, open file formats, images, sounds, and text formatting, and includes backups, statistics, clipboard capture, keyboard controls, and search with regular expressions and fuzzy matching. Users can import tab-delimited Excel exports and ready-made databases from the maker's library. FullRecall can run without installation, including from a USB drive. Downloads are listed for Windows, Linux, FreeBSD, macOS (x86), PocketPC, Maemo, and Android; the listed platforms also include iOS and web. Its FAQ says it helps with remembering knowledge, not understanding it.

Khan Academy is a free learning platform for independent learners, teachers and parents, available on Android, iOS and the web. It offers more than 840 free courses in core academic subjects for K–12 and early college, with personalized learning intended to help students master concepts and address learning gaps. The mobile app includes interactive exercises, mastery levels, synced progress, offline video downloads and a scratchpad. Khan Academy Kids is a free, ad-free app for children ages 2–8 with interactive books, games and creative lessons. Khanmigo tutoring guides learners toward answers across academic subjects from elementary school through college. Teacher tools can assist with lesson planning, feedback, student work summaries, rubrics and exit tickets; Khan Academy for Teachers also includes standards-aligned practice, progress tracking and AI support. Teachers can import Google Classroom rosters, while district plans list Clever or ClassLink rostering and single sign-on. Paid Khanmigo subscriptions require users to be at least 18, live in the United States and have a U.S. billing address. Parent and learner subscriptions each cost $4 a month.