Comparison

Sandbook vs ChessBook Reader

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

Head to head
About

Sandbook

This app reads books, documents, and articles aloud using natural-sounding voices. It offers offline functionality, supports various file formats, and allows customization of reading speed and appearance. Save web pages and printed text for later listening.

Highlights
  • Natural offline voices
  • Supports EPUB, PDF, DOCX, TXT, and more
  • Save web pages for later
  • Adjustable reading speed
  • Highlighting of spoken words
  • CarPlay integration
  • Export audio files
Features
Read full description

Sandbook reads books, documents and articles aloud in natural voices, entirely on your iPhone or iPad. Nothing you read is uploaded, and there is no account, no subscription and no ads. Press play, lock your screen, and Sandbook keeps reading, in your pocket or in the car with CarPlay. Found an article in Safari, Chrome or another app? Tap Save to Sandbook and it waits in your Listen Later queue. NATURAL VOICES, OFFLINE - 41 voices in American and British English, Spanish, French, Italian, Brazilian Portuguese and Hindi - A book in Spanish, French, Italian, Portuguese or Hindi opens with a voice in its language - Powered by the open-source Kokoro model, running locally; no internet connection needed - Follow along as each spoken word is highlighted - Speed from 0.5x to 2.5x; each book remembers its voice and speed - Pronunciations: tell Sandbook how to say a name or word, in every book or just one READ ALMOST ANYTHING - Import EPUB, PDF, Word (.docx), TXT, RTF, Markdown and HTML files - Add a web page by pasting a link, or save it from Safari, Chrome and other apps with Save to Sandbook in the share sheet - Scan printed pages with the camera, or pick a photo, and listen - Send files or selected text from any app with the share sheet, or type and paste your own - Open a document straight from the Files app with Open With, or set Sandbook as its default app - Browse a shelf of public-domain classics in English, Spanish, French, Italian, Portuguese and Hindi, and play a short sample before you download one LISTEN THE WAY YOU READ - Opens at the paragraph where you stopped - Keep listening when you leave the book, with a mini player at the bottom of the screen - Bookmarks, and search inside a book - Sleep timer: stop after a set time or at the end of the chapter - Passages you've already heard play back instantly - In a PDF, the sentence being read is highlighted on the page; tap any sentence to read from there - Reading options: light, sepia and dark themes, fonts, text size and line spacing - Appearance: light, dark or matching your system - See each book's length, listening time and the time left in the chapter - Keep listening with the screen locked or while you use other apps; the lock screen shows the chapter's progress, with 15-second skips - Listen Later: web pages and text you save wait at the top of your library and play one after another - CarPlay: continue your book, or pick one from your library or Listen Later, and change the speed from the car's screen - Widgets for the Home Screen and Lock Screen, and a Play Sandbook control for Control Center and the Action button - Continue Reading with Siri or the Shortcuts app - Export a chapter or a whole book as one M4A audio file with chapter markers, or any text you type ACCESSIBILITY - VoiceOver, Voice Control, Switch Control, larger text and contrast improvements - The app is available in English, Spanish, French, Italian, Portuguese (Brazil) and Hindi PRIVATE BY DESIGN Your books, text and voices stay on your device. Sandbook never sends what you read to a server. GOOD TO KNOW - Voices require iPhone 12 or later, or an iPad with an A14 or M1 chip or later. Sandbook also needs iOS 18.2 or later. Questions or ideas: support@sandbook.app

About

ChessBook Reader

Features
Read full description

ChessBook Reader — your chess library, brought to life Turn any chess book into an interactive study session. ChessBook Reader opens your PDF and EPUB chess books, recognizes the diagrams and move notation on the page, and lets you replay every game and variation on a real, interactive board — right beside the text. Whether you're working through a classic opening manual, an endgame treatise, or an annotated games collection, you'll never lose your place between the printed board and the moves again. WHY CHESSBOOK READER • Read PDF and EPUB chess books in a clean, distraction-free reader • Automatically recognizes board diagrams from the page • Understands chess notation — including older English descriptive notation (P-K4, Kt-QB3, PxP, Castles) • Tap through the moves and watch them play out on an interactive board • Built-in scanning: turn a paper book into a readable, playable file • Works fully offline — your books stay on your device • Sync moves live to a Chessnut Move board, or play out any position against the built-in chess engine FOR EVERY CHESS READER From beginners following their first opening book to club players studying classic masters, ChessBook Reader bridges the gap between reading about chess and actually playing through it. Chessnut Move board sync and Play vs Computer are free to try — 5 sessions total, shared between them. After that, a one-time Pro Unlock keeps both available for good, on every device you sign in on. Download ChessBook Reader and rediscover the chess books on your shelf.

Screenshots

Sandbook4 screens
ChessBook Reader3 screens

Verdict

The call

The clearest difference is update cadence: Sandbook at weekly against ChessBook Reader's monthly. ChessBook Reader's advantage is iOS requirement (16.0 vs 18.2). 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Sandbook ships an update weekly, ChessBook Reader monthly. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

Scorecard2 real differences · 8 level
Sandbook versus ChessBook Reader: the parameters behind the verdict, then further details
ParameterSandbookChessBook Reader
PriceFreeFree
Rating4.6 (148 ratings) — better—
Positive reviews80.6% of reviews—
Number of ratings148 — better—
Update frequencyWeekly — betterMonthly
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, MaciPhone, iPad, Mac
Requires iOS18.216.0 — better
Further details — not scored
Size126 MB133 MB
Age rating+44+
DeveloperSmashMelon LLCVu-Hung Quan

In-app purchases

None

Sandbook

No in-app purchases

None

ChessBook Reader

No in-app purchases

Questions

Is Sandbook free?
Sandbook is free to download, with no in-app purchases.
Is ChessBook Reader free?
ChessBook Reader is free to download, with no in-app purchases.
Do Sandbook or ChessBook Reader have ads?
Neither Sandbook nor ChessBook Reader shows ads.
Which is updated more often, Sandbook or ChessBook Reader?
Sandbook ships an update weekly, and ChessBook Reader monthly. Most recently, Sandbook was updated on October 30, 2026 and ChessBook Reader on October 28, 2026.

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