Readwise is a platform that consolidates highlights from e‑books, articles, and reading apps—such as Kindle, Instapaper, and Apple Books—into a single library. It uses a spaced‑repetition system to surface the most valuable highlights via a daily email and in‑app review, helping users retain key ideas over time. Users can also tag, annotate, and search their highlights to organize and connect insights across their reading collection.
Funding
Funding not disclosed
Founders
Product
Problem
Readers often lose the value of their highlights because they remain scattered across multiple platforms and are rarely revisited, leading to poor long‑term retention of key ideas from books and articles.
Solution
Readwise aggregates highlights from sources such as Kindle, Instapaper, Apple Books, and other reading apps into a unified library. It delivers a daily email and in‑app review that presents selected highlights at spaced‑repetition intervals, helping users reinforce memory and apply insights over time. The platform also provides tagging, note‑taking, and full‑text search to organize and interlink ideas across the collection. Integration with note‑taking tools like Evernote, Notion, and Roam enables automatic syncing of highlights and annotations to users' preferred knowledge‑management workflows.
Target Audience
Primary users are avid readers, researchers, and knowledge workers who regularly consume digital books and articles and seek to retain and organize the information they extract.
Features
- Automatic import of highlights from major ebook and article services into a single searchable repository
- Daily email and app‑based spaced‑repetition review that surfaces the most valuable highlights at optimal intervals
- Tagging, annotation, and advanced search to categorize and connect ideas across the library
- Continuous two‑way sync with popular note‑taking applications (Evernote, Notion, Roam) for seamless knowledge integration
- Cloud‑based library that updates in real time as new highlights are added