Comparison

Penny vs Reader King

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

Head to head
About

Penny

This app helps you build a consistent reading habit by tracking your books, timing your reading sessions, and allowing you to take notes. It offers ambient soundscapes to enhance your reading atmosphere and provides detailed progress statistics. The app prioritizes user privacy and works offline.

Highlights
  • Build and organize your book library
  • Track reading sessions with a timer
  • Ambient soundscapes for atmosphere
  • Take notes and track characters
  • View detailed reading progress stats
  • Syncs with iCloud
  • Offline functionality
Read full description

Penny is a reading tracker for people who want a simple, private place for their books. There is no account to create, no ads and no social feed. Your library, your reading time and your notes stay on your iPhone and sync through your own iCloud. Penny 2.0 is the biggest update since launch, and nearly everything in it started as an email or a review from a reader. PICK YOUR PENNY • Four looks: Classic, Paper, Pond (with a dusk mode for reading at night) and Bloom • Each look has its own app icon, and your widgets change with it • Penny now speaks English, German, French, Italian, Spanish and Brazilian Portuguese. Choose the language in Settings TIME YOUR READING • Start the timer, read, then note the page you stopped on • A short recap after every session with your minutes, pages, streak and week • Your timer on the Lock Screen and in the Dynamic Island • A daily reminder at your reading time, free for everyone A BOOKSHELF ON YOUR HOME SCREEN • The new Bookshelf widget lines up the books you finished, spine by spine, in the colors of their covers • Currently Reading and Reading Summary widgets keep your progress in sight • Every widget is free and dresses up for your look STANDING IN A BOOKSTORE? • Scan the barcode and Penny tells you if the book is already yours, in any edition • Put the books you want to buy on your Wishlist • Open the scanner straight from Control Center with the Scan a book control PREVIOUSLY ON… • Back to a book after a break? Penny shows the page you stopped on, your last note and the characters and terms you saved BUILD YOUR LIBRARY • Search millions of books from Google Books, Apple Books and Open Library, or scan the barcode • Bring your library over from Goodreads or StoryGraph with a CSV import • Shelves for To Read, Reading, Finished and DNF, plus shelves of your own • Half-star ratings, for the books that deserve a 3.5 • Finish a book and Penny throws you a small party KEEP WHAT YOU READ • Notes and quotes, a glossary for places and terms, and a character list for every book • Everything stays with its book, easy to find when you need it SEE YOUR PROGRESS • Reading streaks and a calendar with the cover of every book you read each day • Stats for books, pages and time, monthly trends, genres and your Year in Review SET THE MOOD • 19 ambient sounds, from rain on the window to a medieval tavern, and you can mix them PRIVATE BY DESIGN • No account, no email, no sign-up • No ads, no tracking, no analytics • Syncs between your iPhone and iPad through your private iCloud FREE AND PREMIUM Most of Penny is free: up to 40 books, the timer and session recaps, stats and streaks, the scanner and Bookstore mode, all four looks, every widget, the daily reminder, iCloud sync and 4 ambient sounds. Premium adds unlimited books, notes, terms and characters, Previously on…, the Wishlist, the Lock Screen timer after your first three sessions, all 19 sounds, custom shelves, CSV export and your full session history. Premium is a monthly or yearly subscription, or a one-time lifetime purchase. I made Penny because I wanted a simpler way to keep track of what I read, without accounts or social media. If there's something you'd love to see next, the Send Feedback button in Settings comes straight to me. Terms of Use: https://readwithpenny.online/terms Privacy Policy: https://readwithpenny.online/privacy

About

Reader King

Features
Read full description

Reader King is a local-first eBook reader for organizing, importing and reading personal files on iPhone, iPad and Mac. It does not require registration, sign-in or a cloud account. Your books, reading progress, bookmarks and reading history stay in the app sandbox on your device. You can import common document and eBook files from Files, Finder or system sharing, including PDF, EPUB, TXT, Markdown, RTF, MOBI, AZW, AZW3, CBZ, FB2 and HTML. Reader King copies imported files into its local sandbox so access does not depend on temporary external file permissions. The built-in reader focuses on PDF reading in this release, with automatic page progress, search, outline, bookmarks, page jump, single-page and double-page layouts, and reader preferences. Other supported eBook formats can be imported, archived, downloaded and managed locally. Reader King also supports network subscriptions. Add a direct eBook download link, or provide a JSON, CSV or plain text manifest to parse and download multiple books into your shelf. Downloads only happen from links you enter. Highlights: - Local import from iPhone, iPad and Mac. - PDF reading with progress, search, outline, bookmarks and page jump. - Direct link downloads and batch manifest subscriptions. - Responsive shelf layouts for phone, tablet and desktop. - Mac support for Finder import, drag and drop, menu shortcuts and Settings. - No account, no third-party analytics and no uploaded reading records.

Screenshots

Penny4 screens
Reader King4 screens

Verdict

The call

The clearest difference is update cadence: Penny at every 8 days against Reader King's every 4 weeks. On price, ads, in-app purchases 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. Penny sells 3 in-app purchases, starting at $2.99 per month and Reader King sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Penny ships an update every 8 days, Reader King every 4 weeks. Both last shipped on October 28, 2026.

Scorecard1 real difference · 9 level
Penny versus Reader King: the parameters behind the verdict, then further details
ParameterPennyReader King
PriceFreeFree
Rating5.0 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 8 days — betterEvery 4 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPadiPhone, iPad, Mac — better
Requires iOS18.0 — better18.6
Further details — not scored
Size39 MB6 MB
Age rating4+4+
DeveloperClaudiu Valentin Sararulecoo

In-app purchases

3 purchases

Penny

Subscriptions2
  • Monthly$2.991 Month
  • Yearly$19.991 Year
One-time1
  • Lifetime$29.99
1 purchases

Reader King

One-time1
  • Reader King Enhanced$0.99

Questions

Is Penny free?
Penny is free to download, with in-app purchases available.
Is Reader King free?
Reader King is free to download, with in-app purchases available.
Do Penny or Reader King have ads?
Neither Penny nor Reader King shows ads.
Which is updated more often, Penny or Reader King?
Penny ships an update every 8 days, and Reader King every 4 weeks. Most recently, Penny was updated on October 28, 2026 and Reader King on October 28, 2026.

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