Comparison

ReadNotes vs Cindy's Books

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

ReadNotes

This app helps you remember what you read by taking notes while you read, cleaning them with AI, and generating key takeaways. It tracks your reading progress, builds a personal knowledge library, and offers spaced repetition flashcards.

Highlights
  • AI-powered note cleaning
  • Key takeaway generation
  • Reading progress tracking
  • Spaced repetition flashcards
  • Personal knowledge library
  • Reading statistics and streaks
  • Goodreads library import
Features
Read full description

ReadNotes is the reading tracker and AI note-taking app for people who want to remember what they read, not just finish books. Take notes while you read, clean them up instantly with AI, and generate a single key takeaway from each idea. Over time, ReadNotes builds your personal knowledge library from every book you finish. What you can do: • Write or record voice notes while reading • AI cleans up messy notes into clear, concise text • Generate one key takeaway per note — no rewriting needed • Track books across Reading, Finished, and Want to Read • Review what you learned with spaced repetition flashcards • See your reading stats, streaks, and knowledge by genre • Share insights with friends and see what they're reading • Import your Goodreads library in seconds • Export your notes as PDF Free users get limited AI usage per week. Upgrade to ReadNotes+ for Unlimited AI takeaways and PDF export. Got ideas or questions? Reach out to us at readnotesapp@gmail.com. TERMS: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ PRIVACY POLICY: https://readnotes.vercel.app/privacy

About

Cindy's Books

Catalog your personal book collection with this offline-first mobile app. Quickly add books by scanning barcodes, automatically filling in details. Syncs with a self-hosted server for seamless management.

Highlights
  • Offline library catalog
  • Barcode scanning for adding books
  • Automatic book detail population
  • Search and browse by author/series
  • Mark books as read
  • CSV import/export
  • Optional BookNexus server sync
Features
Read full description

Cindy's Books is named for my wife, Cindy — whose ever-growing shelves started all of this. It began with a simple problem: standing in a thrift store holding a paperback, she had no quick way to know whether she already owned it. I looked everywhere for an app to catalog her collection. Everything was either a heavy-handed "library management" system built for institutions, or so bare-bones it was barely more than a list. Nothing hit the sweet spot — a simple, fast, personal book catalog. So I built one, and made it a public project so any book lover could use it. Then reality hit: a web app is useless in the back of a thrift store with one bar of signal. So this is a native app that keeps your entire collection on your device — instant lookups, no connection needed. Point your camera at a barcode and it tells you "already owned" or "not yet — add it?" And for self-hosters running the open-source BookNexus web app, it syncs both ways with your own server: add books on your phone, edit them at a keyboard on the web, both stay in sync. What it does • Your whole library on your phone — fully offline • Scan a barcode to add a book, or catch a duplicate before you buy it • Auto-fills title, author, and cover from Open Library • Browse by author or series; instant search • Mark what you've read • CSV import/export and iCloud backup • Optional two-way sync with your self-hosted BookNexus server No account. No ads. No tracking. Your collection is one file on your phone that you own.

Screenshots

ReadNotes4 screens
Cindy's Books4 screens

Verdict

The call

The clearest difference is in-app purchases: Cindy's Books at none against ReadNotes's 2. ReadNotes's advantage is ratings volume (5 vs 1). On price, rating, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. ReadNotes sells 2 in-app purchases, starting at $4.99 per month. Cindy's Books asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for ReadNotes against 5.0 for Cindy's Books. That said, the two scores are not equally well evidenced: ReadNotes has 5 ratings behind it against 1, so its average is the more settled of the two.

Scorecard3 real differences · 7 level
ReadNotes versus Cindy's Books: the parameters behind the verdict, then further details
ParameterReadNotesCindy's Books
PriceFreeFree
Rating5.0 (5 ratings)5.0 (1 ratings)
Positive reviews—100.0% of reviews
Number of ratings5 — better1
Update frequencyMonthly—
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.617.0 — better
Further details — not scored
Size14 MB4 MB
Age rating4+4+
DeveloperAKSHAT ROHELLADavid Rodgers

Customer experience

ReadNotes

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Cindy's Books

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

ReadNotes

Subscriptions2
  • ReadNotes+ Monthly$4.991 Month
  • ReadNotes+ Annual$19.991 Year
None

Cindy's Books

No in-app purchases

Questions

Is ReadNotes free?
ReadNotes is free to download, with in-app purchases available.
Is Cindy's Books free?
Cindy's Books is free to download, with no in-app purchases.
Which has better reviews, ReadNotes or Cindy's Books?
ReadNotes and Cindy's Books are both rated 5.0 out of 5 on the App Store, from 5 and 1 ratings respectively.
Do ReadNotes or Cindy's Books have ads?
Neither ReadNotes nor Cindy's Books shows ads.

Other comparisons