Chapters vs cyberWriter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Chapters
This app allows users to create and edit ePub ebook files. It supports viewing, formatting text, and saving changes. Features like iCloud sync, autosave, and unlimited undo enhance the editing experience.
- Create and edit ePub files
- View documents in vertical scroll
- Edit and format text
- Save changes to files
- iCloud Drive sync
- Autosaving
- Unlimited undo/redo
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Chapters can create new ePub documents and open existing ePub files for editing. ePub is the most widely adopted file format for ebooks. ePub files reflow their content for comfortable reading on screen of any size from smartphones to desktops. Each document's content zipped into a single file for maximum portability. It is an open and vendor-independent file format based on popular web standards, such as HTML and CSS. With Chapters, you can ▪ Open existing files and create new ePub documents ▪ View an entire document in vertical scroll view ▪ Pinch to zoom and smart zoom with double-tap ▪ Edit and format document’s text ▪ Save your changes back to the file ▪ Use Table of Contents to jump ahead (on Mac only at the moment) ▪ Print and export to PDF (on Mac only at the moment) ▪ Add cover image and modify metadata (on Mac only at the moment) Chapters also supports ▪ iCloud Drive for keeping documents in sync on all your devices ▪ Autosaving automatically saves changes in background while you are editing ▪ Unlimited undo and redo as you edit ▪ Browsing previous changes and restoring them ▪ Resume your work right where you left off once app launches ▪ Side by side multitasking with another app in full screen split view on Mac and iPad ▪ Sharing documents with others via Messages, Mail and AirDrop If you encounter a bug or app crashing, please contact app’s support at chapters@shaw.ca Thank you!
cyberWriter
This app offers a comprehensive Markdown editing experience with live WYSIWYG, split-screen editing, and the ability to link notes into a knowledge graph. It supports diagrams, charts, and math, with a built-in terminal for vault management and optional AI integration. All data is stored locally and offline.
- Live WYSIWYG Markdown editing
- Knowledge graph with wikilinks
- Built-in GLOW terminal with AI
- Support for diagrams, charts, and math
- Offline and private by design
- Export to PDF, Word, and HTML
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cyberWriter turns plain Markdown into a live studio - write in true WYSIWYG, split screen editing, link your notes into a knowledge graph, and drop in diagrams, charts, drawings from excalidraw, and KaTeX math. All native, all offline, no account required. Even use the built in GLOW terminal to manage, script and create docs in your vault, with your own AI models if you'd like. Bring your own vault from any popular markdown editor and unleash your potential. It reads and writes ordinary .md files in your own folders - including iCloud Drive - so your notes stay portable, future-proof, and yours. WRITE • Live WYSIWYG editing with a one-tap raw-Markdown toggle • Tables, callouts, task lists, footnotes, code blocks • Split view, focus mode, and beautiful themes • Clip a web page → clean Markdown, images and all * New TOML Support and Pageless PDF exports POWER TOOLS • GLOW terminal - a built-in command line for your vault, with your AI model on the prompt • Live data blocks - pull from any API straight into a note • Typed YAML properties with an inline editor • Dataview-style query blocks to list and filter across your vault • Templates, find & replace, snippets, and media embeds (audio, video, PDF, CSV) LINK • [[Wikilinks]] and automatic backlinks across your vault • #tags, a quick-open switcher, and hover previews • An interactive 3D knowledge graph of your notes SHOW • Mermaid diagrams - flowcharts, sequence, Gantt, and more • Vega-Lite charts straight from your data • Excalidraw hand-drawn diagrams • LaTeX math, beautifully typeset • Play any note as slides or spaced-repetition flash cards CAPTURE & EXPORT • Voice notes and on-device dictation • Export to PDF, Word, and HTML - no external tools, no cloud PRIVATE BY DESIGN • Fully offline. No account, no sign-up, no telemetry, no ads • Optional AI connects only to a provider you choose - a local server (Ollama, LM Studio, oMLX etc), your own API key, or Apple Intelligence on supported devices. Nothing leaves your device unless you set it up. One purchase. Your notes, your device, your rules.
Screenshots
Verdict
The clearest difference is review sentiment: cyberWriter at 100% against Chapters's 33%. cyberWriter also leads on rating (5.0 vs 1.0) and update cadence (weekly vs every 7 months). Chapters's advantage is price ($9.99 vs $14.99) and device support (4 vs 2). On ads, in-app purchases and monetization model 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
Chapters costs $9.99 and cyberWriter $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.
cyberWriter holds the better App Store score, 5.0 against 1.0. That said, the two scores are not equally well evidenced: cyberWriter has 6 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 33% of Chapters's written reviews are positive against 100% of cyberWriter's.
Chapters ships an update every 7 months, cyberWriter weekly. Both last shipped on September 23, 2026.
| Parameter | Chapters | cyberWriter |
|---|---|---|
| Price | $9.99 — better | $14.99 |
| Rating | 1.0 (1 ratings) | 5.0 (6 ratings) — better |
| Positive reviews | 33.3% of reviews | 100.0% of reviews — better |
| Number of ratings | 1 | 6 — better |
| Update frequency | Every 7 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 1 MB | 48 MB |
| Age rating | 4+ | 4+ |
| Developer | Two-Byte Software Inc. | John Taverna |
Customer experience
Chapters
cyberWriter
In-app purchases
Chapters
No in-app purchases
cyberWriter
No in-app purchases









