Comparison

Crystal Disk vs ghostWriter Markdown

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

Head to head
About

Crystal Disk

Features
Read full description

Crystal Disk is the software designed for V-smart Airdisk wireless portable storage devices. This app allows you to backup, store, transfer, and exchange files easily between Mac/PC, smartphones, tablets, and other iOS mobile devices without any other synchronization software such as iTunes. Crystal Disk allows you to store, view, and manage files on your iOS mobile devices and backing up your music, photos, and documents in the Airdisk storage device. You can also recover the data on any mobile device on all operating systems. Other feature include - Backup of contact information and recovery on a different platform Powerful media player that supports all major media formats Audio: mp3, aac, m4a, aif, aiff, wav, flac, ape, and more

About

ghostWriter Markdown

A plain-text writing app designed with accessibility in mind. It allows users to create, organize, and export documents in various formats, with features like voice control and outline navigation.

Highlights
  • Accessibility-first plain-text editor
  • Organize documents and chapters
  • Compile work into finished exports
  • Supports multiple export formats (HTML, EPUB, PDF, Word)
  • VoiceOver integration
  • Native Find and Replace
  • Outline navigation for headings
Read full description

ghostWriter Markdown is an accessibility-first, plain-text writing app for notes, articles, documentation, and full manuscripts. Write individual documents, organize chapters, and compile your work into a finished export. VoiceOver was at the center of the design from the first line of code. Created by a blind developer, ghostWriter gives screen reader users and anyone who loves plain text a clean, native place to write. So what's Markdown? Markdown adds structure using ordinary punctuation. A number sign makes a heading. A dash makes a list item. Your document stays readable as plain text, and you can render it to see the finished formatting. You don't have to know Markdown to start. Insert Actions adds common elements, the Markdown Reference provides examples, and the included ghostWriter Help Manual explains writing, organizing, and exporting your work. Writing Made Easy: • A native editor that keeps Markdown punctuation visible and you in control of the source • Insert links, images, headings, quotes, code, lists, tasks, tables, and rules • Automatic continuation for bullets, numbered lists, and tasks • Indent and outdent with tabs or spaces • Native Find and Replace, dictation, braille input, and text selection • A configurable Status Bar with line and column position, word, sentence, and character counts, heading level, and selection counts • Automatic saving, plus collision detection if the same document is open on separate devices • Start in the Library, a new document, or your last document Useful Navigation: • Use Outline to jump to document headings • Move through headings with a three-finger horizontal VoiceOver swipe while editing • Jump to Line in long documents • Search document names and contents • Return to your remembered editing position in each file Keep Files Organized: • Create, rename, and move nested folders • Pin documents you keep coming back to • Sort by name, created, modified, or last opened, or arrange files and folders manually • Restore removed files from Recently Deleted • Import Markdown, plain text, Word documents, and PowerPoint presentations into Markdown Build Your Manuscript: • Compile documents from nested folders into a single export • Choose which files to include and arrange chapters for each compilation • Keep research and notes nearby while excluding them from compilations • Track word, sentence, and character totals for individual files or whole folders • Control heading structure when combining documents Render and Share: • Render Markdown as structured HTML with semantic headings, lists, tables, and links • Export individual documents or compilations as Markdown, plain text, HTML, EPUB, PDF, Word, PowerPoint, eBraille, or BRF • Customize Word exports with your own JSON stylesheets, optional title and subtitle styles, and a supplied Large Print stylesheet Your Files, Your Devices: • Ordinary Markdown files, visible in the Files app • On-device storage or iCloud Drive syncing across iPhone, iPad, and Mac • Open and edit your files in other apps that read text • No proprietary format and no dependence on ghostWriter to keep your work Accessibility: Developed toward WCAG 2.2 Level AA and tested with VoiceOver as a primary interaction method. • Native controls with familiar roles and behaviors • Dynamic Type, including accessibility text sizes • System, monospaced, rounded, and serif editor typefaces • Light, dark, and system appearance • Voice Control, Switch Control, and hardware keyboard support • Optional keyboard shortcuts for common actions • Reduced-motion support Privacy: No accounts. No sign-in. No ads. No analytics. No tracking. No data collection. No AI tools. There is no server behind this app. Your documents stay on your device or in your own iCloud, and they never travel anywhere you don't send them. Made by a blind developer who got tired of tools that treated screen reader support as an afterthought.

Screenshots

Crystal Disk4 screens
ghostWriter Markdown4 screens

Verdict

The call

The clearest difference is update cadence: ghostWriter Markdown at every 2 days against Crystal Disk's every 6 weeks. Crystal Disk's advantage is iOS requirement (8.0 vs 17.6). 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

Crystal Disk ships an update every 6 weeks, ghostWriter Markdown every 2 days. The most recent releases landed on October 9, 2026 and October 13, 2026 respectively.

Scorecard2 real differences · 8 level
Crystal Disk versus ghostWriter Markdown: the parameters behind the verdict, then further details
ParameterCrystal DiskghostWriter Markdown
PriceFreeFree
Rating—4.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 6 weeksEvery 2 days — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS8.0 — better17.6
Further details — not scored
Size86 MB5 MB
Age rating4+4+
DeveloperSunita Telecom Co.,Ltd.Marco Salsiccia

In-app purchases

None

Crystal Disk

No in-app purchases

None

ghostWriter Markdown

No in-app purchases

Questions

Is Crystal Disk free?
Crystal Disk is free to download, with no in-app purchases.
Is ghostWriter Markdown free?
ghostWriter Markdown is free to download, with no in-app purchases.
Do Crystal Disk or ghostWriter Markdown have ads?
Neither Crystal Disk nor ghostWriter Markdown shows ads.
Which is updated more often, Crystal Disk or ghostWriter Markdown?
Crystal Disk ships an update every 6 weeks, and ghostWriter Markdown every 2 days. Most recently, Crystal Disk was updated on October 9, 2026 and ghostWriter Markdown on October 13, 2026.

Other comparisons