JSONDoc vs hYYa ink
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
JSONDoc
This app transforms complex JSON models into visual diagrams for easier understanding and communication. It ensures all your data remains on your device for complete privacy and security.
- Transforms JSON models into visual diagrams
- Enhances readability of complex data
- Keeps all JSON documents on your computer
- Easy-to-use interface
- Secure data handling
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Tired of trying to make sense of complex JSON models? The JSONDoc is here to help! This easy-to-use app takes your JSON models and transforms them into visual diagrams, making it much easier to understand and communicate complex data. One of the best things about JSONDoc is that all your JSON documents stay on your computer - nothing is sent to external servers or stored in the cloud. This means you can work with sensitive data in complete confidence. With the JSONDoc, all you need to do is input your JSON model and generate your diagram. Our app is perfect for developers, designers, data analysts or anyone who needs to visualize large amounts of data. Whether you’re working on a personal project or collaborating with a team, the JSONDoc will make your work more efficient and effective. Key features: • Easy-to-use interface: Simply input your JSON models and generate the diagram • Enhanced readability: Translate complex JSON models into easily understandable visual diagrams • Secure: All your JSON documents stay on your computer The JSONDoc is available for download now! Give it a try and take your JSON models to the next level. ------- AppIcon uses `mdi:graph-outline` from https://pictogrammers.com Terms of use: https://aarkaystudio.com/apps/jsondoc/terms Privacy policy: https://aarkaystudio.com/apps/jsondoc/privacy
hYYa ink
This app transforms raw text files and documents into easily readable formats. It allows for in-document editing, PDF manipulation, format conversion, and AI-powered assistance, all while prioritizing user privacy and offline functionality.
- Read Markdown, JSON, YAML, CSV, diagrams, and more
- Edit text files and tables directly
- Sign, mark up, and redact PDFs
- Convert between various document formats
- AI-powered document explanation and summarization
- Offline document viewing and editing
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Stop reading syntax. Start reading documents. A .md file. A JSON export. A notebook, a diagram, a contract to sign. hYYa ink opens them as clean, readable documents instead of walls of raw text, on your Mac, iPhone, iPad and Apple Vision Pro. Reading is free, forever. READ WHAT YOU'RE SENT • Markdown — clean headings, lists, tables and links • JSON, YAML and TOML — tidy trees you can fold and explore • CSV and TSV — a real table, not a wall of commas • Mermaid and Graphviz — diagrams drawn instantly, offline • LaTeX — math that looks right • Jupyter notebooks — cells, code and text outputs, easy to read • AsciiDoc, Org-mode, XML, diffs and logs — readable at last FIX IT WHERE YOU SEE IT Change a JSON value or a table cell right on the page, and only that changes. Sort, filter and find & replace in any table. Write Markdown with a simple toolbar. Edit any text file and see it as a clean document. SIGN, MARK UP AND REDACT PDFS Tap the spot and type. Draw your signature, then place, resize and rotate it. It's a visual signature, not a certified one. Add stamps such as Approved or today's date. Highlight, underline or mark up by hand. Need something gone? Redact removes the selected text from the page. Erase does the same and leaves clean white space. Either way you get a new file, and your original stays as it was. Find any word in a PDF, browse by page or contents, and open password-protected files. Make a scan searchable, right on your device. Reorganize, split, compress, protect or watermark, and each one saves a new file. Compare two PDFs to see which pages differ. TURN ONE FORMAT INTO ANOTHER Save JSON, YAML, TOML and XML as one another, tables as CSV or TSV, notebooks and Org files as Markdown, Markdown and AsciiDoc as web pages, and diagrams as SVG or PNG. If something can't carry over exactly, hYYa ink tells you first. ASK AI, WITH YOUR OWN KEY Explain, summarize or translate a document, PDFs included. Fix errors, reformat, or turn an idea into a diagram. Connect OpenRouter, Groq, Together AI or a compatible service. Your key stays on your device. Only the open document's text is sent, and only when you run an AI action. Every AI result says it was written by AI. PRIVATE BY DESIGN. BEAUTIFUL BY DESIGN. No account. No tracking. No data collection. Documents open on your device without an internet connection, and they stay there unless you choose to send them. FREE TO READ, PRO TO DO MORE Reading every format is free forever, and so are saving as a PDF, printing, and searching or browsing a PDF. Try everything free for 7 days. You are not charged. After that, a one-time purchase unlocks editing, PDF tools, saving in other formats and AI on Mac, iPhone, iPad and Apple Vision Pro. From hYYa — more than apps. Companions you can trust.
Screenshots
Verdict
The clearest difference is update cadence: hYYa ink at every 2 days against JSONDoc's every 3 weeks. On price, rating, ratings volume and ads 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
Both are free to download. JSONDoc sells 3 in-app purchases, starting at $2.99 per month and hYYa ink sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 5.0 for JSONDoc against 5.0 for hYYa ink. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
JSONDoc ships an update every 3 weeks, hYYa ink every 2 days. The most recent releases landed on November 3, 2026 and November 11, 2026 respectively.
| Parameter | JSONDoc | hYYa ink |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 | 1 |
| Update frequency | Every 3 weeks | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, iPad, Mac | iPhone, iPad, Mac, Vision Pro — better |
| Requires iOS | 18.6 | 17.0 — better |
| Further details — not scored | ||
| Size | 18 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | Rahul Katariya | Hassaan Abdeen |
Customer experience
JSONDoc
hYYa ink
In-app purchases
JSONDoc
- Monthly3 Days trial$2.991 Month
- Yearly14 Days trial$12.991 Year
- Lifetime$19.99
hYYa ink
- 7-day TrialFree
- hYYa ink Pro$19.99








