AI that only answers from the sources you gave it.

Long-context chat that is unusually careful with a uploaded PDF.
Best for reading a long paper or a messy notes dump
Reviewed 16 September 2026 · Prices checked the same day
4.7
180K reviews
Claude is Anthropic’s assistant. The free plan is usable; Pro is $20 a month. The practical student reason to open it is context length: you can drop a long reading, a lecture transcript, or a messy notes export and ask for a map of the argument.
It still is not your course. Citations need checking. For a notebook that stays attached to a specific set of sources, NotebookLM is more honest. For a study workspace that turns those files into cards, Studycamp is.
Pricing
freemium
Pro $20/mo
Free version
Daily caps on the current model
Platforms
Web · iOS · Android · Desktop
The Sunday-night reading companion. Ask it to outline, then close the tab and write the notes yourself.
Checked 2026-09-16
| Model | Freemium |
|---|---|
| What free actually includes | Daily caps on the current model |
| Cheapest paid tier | Pro $20/mo |
| Student pricing | None published |
Links from StudyApps include ref=studyapps.
Daily caps on the current model Checked 16 September 2026.
Cheapest paid plan: Pro $20/mo. Prices checked 16 September 2026.
Reading a long paper or a messy notes dump
Free caps hit in a heavy reading week