YAML Tools vs Mdly
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
YAML Tools
A comprehensive YAML utility for developers on iOS. Visualize, format, convert, and generate code from YAML files. Includes validation and a dedicated syntax keyboard for efficient editing.
- Interactive Tree and Table View for YAML visualization
- Convert YAML to JSON, XML, CSV, and more
- Generate type-safe model classes for multiple languages
- Real-time JSON Schema generation and validation
- Dedicated YAML syntax keyboard overlay
- Format and minify YAML structures
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The ultimate YAML toolkit for developers. Visualize, validate, convert, and generate code - all in one powerful, beautifully designed iOS app. YAML Tools is the professional-grade YAML utility built for developers who demand speed, precision, and versatility. Whether you're editing Kubernetes configs, debugging CI/CD pipelines, or generating type-safe model classes, YAML Tools handles it all natively on iPhone and iPad. Visualize & Explore Dive into your YAML with an interactive Tree View and path-based querying. Use the Table View to inspect sequences like a spreadsheet. Rainbow column highlighting makes CSV/TSV output instantly readable. Format & Transform Prettify nested structures with smart indentation or strip whitespace with the Minify engine. Convert YAML to JSON, XML, CSV, TSV, TOML, HTML, Markdown, Base64, and more instantly. Generate Production-Ready Code Export type-safe model classes for Dart, Swift, Kotlin, Java, Python, TypeScript, and C# with intelligent property singularization and pluralization. Stop writing boilerplate, YAML Tools writes it for you. Validate with Confidence Auto-generate JSON Schema from any YAML document, then validate payloads against it in real time. Catch structural errors before they reach production. Built for iOS A dedicated YAML syntax keyboard overlay, native Document Picker integration, and background processing keep the experience fast and fluid, even on large configuration files.
Mdly
This app provides a fast, read-only experience for viewing Markdown and Mermaid files across Apple devices. It offers seamless iCloud synchronization, powerful rendering of modern Markdown features, and inline support for various Mermaid diagrams, all within a distraction-free interface.
- Read-only Markdown viewing
- Mermaid diagram rendering
- iCloud Drive integration
- Full-text search
- Table of Contents navigation
- Dark and light themes
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Mdly is a fast, read-only Markdown viewer designed for effortless reading across iPhone, iPad, and Mac. Open your .md files directly from iCloud Drive or local folders and enjoy clean, distraction-free rendering anywhere. Built for developers, writers, and anyone who keeps documentation in Markdown, Mdly focuses on one thing: reading Markdown comfortably. Seamless iCloud Experience Access the same Markdown files across all your Apple devices. Files created on your Mac appear instantly on iPhone and iPad through iCloud sync. Powerful Markdown Rendering Mdly fully supports modern Markdown features: - Headings, lists, tables, blockquotes - Syntax-highlighted code blocks - GitHub-style Markdown rendering Mermaid Diagram Support Render Mermaid diagrams inline, including: - Flowcharts - Sequence diagram - Timelines and more Perfect for viewing technical documentation on the go. Designed for Reading Mdly is intentionally read-only — no editing distractions. - Slide-up Table of Contents navigation - Full-text search across files - Recent files access - Dark and light themes - Clean typography optimized for long reading
Screenshots
Verdict
The clearest difference is chart position: YAML Tools at #4 against Mdly's #154. YAML Tools also leads on price ($0.99 vs $1.99) and iOS requirement (15.6 vs 18.0). Mdly's advantage is update cadence (every 2 weeks vs monthly). On ads, in-app purchases, monetization model 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
YAML Tools costs $0.99 and Mdly $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
YAML Tools ships an update monthly, Mdly every 2 weeks. The most recent releases landed on October 6, 2026 and September 30, 2026 respectively.
| Parameter | YAML Tools | Mdly |
|---|---|---|
| Price | $0.99 — better | $1.99 |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | 1 — better | — |
| Update frequency | Monthly | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Best chart rank | #4 — better | #154 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 15.6 — better | 18.0 |
| Further details — not scored | ||
| Size | 30 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | Mohammed Aadhil | Yuta Hoshina |
Customer experience
YAML Tools
Mdly
In-app purchases
YAML Tools
No in-app purchases
Mdly
No in-app purchases








