Lexpad

Lexpad is a personal vocabulary notebook with spaced repetition, in 81 languages. Connect it and Claude works with the words you have collected yourself.

• Save words you ask for. "Save ubiquitous with an example about phones." Claude writes the meaning and examples and saves the word to your notebook. A word you already have moves to the top instead of being duplicated.
• Find anything in your notebook. Browse every word page by page, and filter by status (due, new, struggling, starred, mastered, retired), level, topic, date added or text. Open a word in full, or see counts and your streak.
• Practise. "Quiz me on today's due words." Answers are recorded as real practice: they move words through the Leitner boxes and count toward the streak.
• Edit. Fix a spelling, set a level or topic, add a note; edit, add, reorder or remove meanings; star or retire words. Deleting a word is a separate permission you approve when connecting. Edits and deletions are marked destructive, so Claude asks first.

What it never does: it never invents vocabulary you did not ask for, cannot see your e-mail address or password, cannot delete your account or a notebook, and cannot make payments. Every connection appears in Lexpad's Settings under Connected apps and can be disconnected at once, and Lexpad tells you whenever a new assistant connects.

Requires a free Lexpad account (app.lexpad.app).