Heptabase vs RemNote

Heptabase is a visual knowledge base for students, researchers, and lifelong learners. Whiteboards and cards support visual thinking, while a block-based editor, bidirectional links, PDF annotation, daily journals, and a web clipper help organize material. Its AI can explain sources, take notes, and organize a knowledge base from PDFs, YouTube, notes, and journals. Heptabase supports web, Windows, macOS, Linux, iOS, Android, and a Chrome extension, and lists integrations with Readwise and Zotero. The free plan is available through collaboration, allowing edits to shared whiteboards and cards but excluding personal libraries, journals, tag databases, tasks, highlights, and AI features. The desktop app stores data locally, and notes and files are accessible offline. For AWS cloud storage, the company describes encryption in transit and at rest, but not end-to-end encryption. After a subscription or trial ends, users can access and export content indefinitely; creating or editing notes requires renewal. Paid plans start at $8.99/user/mo (annual), with a 7-day trial.

RemNote is a learning and note-taking app that turns notes, PDFs, and other sources into AI-generated flashcards, quizzes, and summaries. Its study tools include spaced repetition, practice quizzes, and card formats such as question-and-answer, fill-in-the-blank, lists, clusters, and image occlusion. Users can annotate PDFs and slides with highlights, drawings, and shapes, and source citations are available. Notes and flashcards remain accessible offline and sync when connectivity returns. RemNote offers desktop apps and mobile apps for iOS and Android. The free plan includes unlimited notes and flashcards and synced devices, plus 20 daily file uploads up to 8MB each and 250 monthly AI credits. It also limits free users to three annotated PDFs, five image occlusion cards, and one handwritten document. Pro is listed at $8 a month, and Pro with AI at $18 a month. RemNote was founded in 2020.