App Overview

Readwise Books icon

Readwise Books

Readwise, Inc · Books

Readwise Books is invite-only for now

Free

PRICE
Free
No in-app purchases
BUSINESS MODEL
Free
No overall Grossing estimate available
RATING
★ 5.0
137 ratings · Top 5%

Evidence scope: No current overall US chart position is available. Category-chart positions shown in discovery are a separate scope. Revenue is a directional model estimate, not verified earnings.

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Build Kit

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A product spec, screen plans, and build steps for your coding agent.

First kit free with a verified email

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Combine features and design from your favorite apps.

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What's included

A product spec, phased build plan, differentiation notes, and screen references.

  • START_HERE
  • AGENTS
  • EVIDENCE
  • SPEC
  • BUILD_PLAN
  • DIFFERENTIATION
  • skills/
  • screens/
Preview a sample Build Kit No email needed

Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.

Feature spec

Goal: Send a clear invoice after finishing a job.

  • Add a client, line items, a due date, and payment instructions.
  • Preview the total before exporting a PDF.
  • Keep an editable draft if export fails.

Screen plan

Invoice editor: Client at the top, editable line items in the middle, total and preview action at the bottom.

States: Empty draft, validation errors beside each field, exporting, and a retry action that preserves the draft.

Differentiate and validate

Hypothesis: Contractors need faster repeat invoices more than more templates.

First experiment: Test duplicating a previous job with five contractors. Watch where they hesitate before expanding the feature set.

The full kit adds a phased build plan, evidence notes, tool prompts, and implementation guidance. It is a plan for your coding agent, not a finished app.

Usage: Mechanics are fair game; never reuse the original name, branding, assets, or verbatim copy.

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Free quick prompt For a smaller starting point

Quick prompt

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Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.

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App evidence

Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.

Screenshots

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App Store description

Readwise Books is invite-only for now. You'll need an invite code from a friend to create an account. (If you're an existing Readwise subscriber, you already have early access.) A reading app unlike any other. Buy, read, and track all your books in one beautiful place. ONE PLACE FOR EVERY BOOK Read the ebooks you buy or upload. Track the rest, whether print, audio, or ebooks from elsewhere. Import your shelves from Goodreads and your Kindle library to start. THE STRAVA OF READING Every page flip is logged automatically, the way a pedometer counts steps. Pages roll up into reading sessions. Sessions roll up into weeks, months, and years. METRICS THAT MATTER Visualize rich reading data like words read, time read, pace, depth, immersion, and more. That which is measured is improved. EVERY BOOK COUNTS Reading on paper? Capture your starting and ending page, then save your session. Highlight print books with your camera. READING, ELEVATED Beautiful typography, light and dark modes, pagination or scroll, and best-in-class highlighting, notes, and tags. READING ALONE IS BETTER, TOGETHER Your sessions post to a light feed where friends can see that you're reading. No likes to chase, nothing to perform. More coffee shop than social network. And only if you want to. LISTEN, TOO Upload any DRM-free EPUB and listen with lifelike voices while the text follows along. READWISE ECOSYSTEM One account across Readwise Books, Reader, and Highlights. Every highlight syncs instantly.

Written user reviews are not shown here. Check current App Store reviews >

Opportunities

AI-GENERATED OPPORTUNITY HYPOTHESES

These are generated suggestions, not verified review quotations. Check current App Store reviews and speak with users before treating a possible gap as a requirement.

Build scope

Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.

Define the first version

Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.

Set boundaries

Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.

Check the hard parts

Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.

SUGGESTED BUILD STACK
BUILD KIT DIFFICULTY

Not assessed in a Build Kit yet.

A reliable timeline needs an agreed scope and a technical check. Ask your agent to estimate the phases in BUILD_PLAN.md after that review.