KZero Passwordless vs Md Preview
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
KZero Passwordless
This app provides passwordless authentication for users of the Multi-Pass Pro card. It allows for secure sign-ins to web applications and MPAS services using push notifications and the Pro card. Users can also manage and access information about their Multi-Pass Pro card.
- Passwordless sign-in
- Push notification authentication
- Manage Multi-Pass Pro card information
- Enroll Multi-Pass Pro card
- Secure access to web applications
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Experience seamless and secure authentication with the Multi-Pass Authenticator app, designed exclusively for users of the Multi-Pass Pro card. This innovative app eliminates the need for passwords, offering a more efficient and secure way to access your services. With the Multi-Pass Authenticator, managing and maximizing the benefits of your Multi-Pass Pro card is easier than ever. Enjoy a range of features tailored to enhance your security and convenience. - Sign in to MPAS using your mobile device to enroll your phone for Push notifications - Sign in to Web applications using push notifications, our MPAS service and your Multi-Pass Pro card - Manage your secure password Vault directly from your mobile device - Obtain information about your Multi-Pass Pro card, such as its version and status - Enroll your brand new Multi-Pass Pro card to our MPAS service
Md Preview
View your Markdown files with exceptional clarity on iPhone and iPad. Supports all Markdown features, code syntax highlighting, LaTeX math, and Mermaid diagrams. Renders files offline and integrates with other apps.
- Full GFM support (tables, task lists, footnotes)
- Syntax highlighting for 40+ programming languages
- LaTeX math rendering with KaTeX
- Mermaid diagram support
- Offline rendering on-device
- System file handler for .md files
- Dark mode with automatic theme switching
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Md Preview renders your Markdown files with stunning clarity — right on your iPhone or iPad. Open any .md file from ChatGPT, Obsidian, Notion, GitHub, or 100+ other apps. Md Preview instantly shows a beautiful, fully-rendered preview with support for every Markdown feature you need. FEATURES • Full GFM Support — Tables, task lists, footnotes, strikethrough, and autolinks • Syntax Highlighting — 40+ programming languages beautifully colored • LaTeX Math — Inline and display equations powered by KaTeX • Mermaid Diagrams — Flowcharts, sequence diagrams, pie charts, and more • Dark Mode — Automatic theme switching that follows your system setting • 100% Offline — All rendering happens on-device. No data ever leaves your phone • Open From Anywhere — Works as a system file handler for .md files from any app • File History — Quickly reopen recent files with one tap • Share Extension — Receive Markdown files shared from other apps SUPPORTED FORMATS .md, .markdown, .mdown, .mkd, .mkdn, .mdwn, .mdtxt, .mdtext, .mdx, .rmd, .qmd Md Preview is the fastest way to read Markdown on iOS. No editing, no clutter — just a clean, beautiful preview.
Screenshots
Verdict
The clearest difference is price: KZero Passwordless at Free against Md Preview's $2.99. KZero Passwordless also leads on rating (5.0 vs 4.4) and review sentiment (100% vs 71%). Md Preview's advantage is update cadence (every 3 days vs every 5 weeks) and ratings volume (5 vs 1). On 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
KZero Passwordless is free to download; Md Preview costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
KZero Passwordless holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Md Preview has 5 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of KZero Passwordless's written reviews are positive against 71% of Md Preview's.
KZero Passwordless ships an update every 5 weeks, Md Preview every 3 days. The most recent releases landed on October 5, 2026 and September 30, 2026 respectively.
| Parameter | KZero Passwordless | Md Preview |
|---|---|---|
| Price | Free — better | $2.99 |
| Rating | 5.0 (1 ratings) — better | 4.4 (5 ratings) |
| Positive reviews | 100.0% of reviews — better | 71.4% of reviews |
| Number of ratings | 1 | 5 — better |
| Update frequency | Every 5 weeks | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 51 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Kelvin Zero | CyberGame Limited |
Customer experience
KZero Passwordless
Md Preview
In-app purchases
KZero Passwordless
No in-app purchases
Md Preview
No in-app purchases
Questions
Is KZero Passwordless free?
Is Md Preview free?
Which has better reviews, KZero Passwordless or Md Preview?
Do KZero Passwordless or Md Preview have ads?
Which is updated more often, KZero Passwordless or Md Preview?
Other comparisons
