
Heptabase
Cards on whiteboards for mapping out and connecting ideas while you research.
PaidiPhoneAndroidMacWindowsLinuxWeb
PricePaid plans from about $9/month



Our verdict
Great for students and researchers who think visually and work through PDFs and sources. There is no free plan, and it suits deep study more than quick notes.
Good
- Visual whiteboards for connecting ideas
- Strong PDF and source workflows
- Available on every platform
Not so good
- No free plan
- Overkill for quick notes
Best for
power usersstudentsevery device



