# hYYa ink: Markdown & JSON — PDF Signer, CSV & YAML Viewer

> Document reader, editor, converter, and PDF tool with AI integration. (iPhone/iPad app by Hassaan Abdeen.)

- Source: https://appshunter.io/ios/app/hyya-ink-markdown-and-json/id6786209046 (this page in markdown: same URL + `.md`)
- Developer: [Hassaan Abdeen](https://appshunter.io/developer/1866789892)
- Category: Developer Tools, Productivity
- Price: Free with in-app purchases
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 17.0 · 18 MB
- Languages: American English, Arabic, Bangla, Catalan, Croatian, Czech, Danish, Dutch, Finnish, French (France) and 34 more
- Released: 2026-07-06
- Data updated: 2026-11-11
- Monetization: freemium

## What is hYYa ink?

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.

## Key features

- 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

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| 7-day Trial | Free | one-time |
| hYYa ink Pro | $19.99 | one-time |


## Is hYYa ink safe?

Not enough ratings yet to assess hYYa ink.

## Is hYYa ink legit?

hYYa ink: Markdown & JSON appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for hYYa ink is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Frequently asked questions about hYYa ink

### What file formats can hYYa ink read?

hYYa ink can read Markdown, JSON, YAML, TOML, CSV, TSV, Mermaid, Graphviz, LaTeX, Jupyter notebooks, AsciiDoc, Org-mode, XML, diffs, logs, and PDFs. Reading all these formats is free forever.

### Can I edit files directly in hYYa ink?

Yes, you can edit text files, change JSON values, and modify table cells directly within the app. This functionality, along with PDF tools and format conversion, requires a one-time purchase after a 7-day free trial.

### Does hYYa ink support AI features?

Yes, hYYa ink integrates with AI services like OpenRouter, Groq, and Together AI for tasks such as explaining, summarizing, translating, reformatting documents, or generating diagrams. Your API key remains on your device, and only the document's text is sent when an AI action is performed.

### Is hYYa ink available on multiple devices?

hYYa ink is available on Mac, iPhone, iPad, and Apple Vision Pro. The Pro features, unlocked by a one-time purchase, are accessible across all these supported Apple devices.

### How does hYYa ink handle PDF editing?

hYYa ink allows you to sign PDFs visually, add stamps, highlight, underline, and redact text. It also offers features like searching, reorganizing pages, splitting, compressing, and comparing PDFs. These PDF tools are part of the Pro features.

### What are the privacy features of hYYa ink?

hYYa ink is designed with privacy in mind. It requires no account, tracking, or data collection. Documents open and remain on your device unless you choose to send them, and AI processing keeps your API key local.

### How often is hYYa ink updated?

The latest version of hYYa ink is 2.1.5, last updated on November 10, 2026. While specific update frequency isn't detailed, the app is actively maintained.

### What is the cost of hYYa ink?

Reading all supported formats, saving as PDF, printing, and PDF searching/browsing are free. Editing, PDF tools, saving in other formats, and AI features are unlocked with a one-time purchase after a 7-day free trial.

## Version history (last 5 releases)

### 2.1.5 — 2026-11-10

This release contains general bug fixes and stability improvements.

### 2.1.4 — 2026-11-06

Diese Version enthält allgemeine Fehlerbehebungen und Stabilitätsverbesserungen.

### 2.1.3 — 2026-11-05

This release contains general bug fixes and stability improvements.

### 2.1.2 — 2026-11-02

New: Erase removes the words you select from a PDF and leaves clean white space.
This release contains general bug fixes and stability improvements.

### 2.1.1 — 2026-11-01

This release contains general bug fixes and stability improvements.

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## More apps by Hassaan Abdeen

- [hYYa Prayer Pal](https://appshunter.io/ios/app/hyya-prayer-pal/id6757415305)
- [hYYa Subscriptions Tracker](https://appshunter.io/ios/app/hyya-subscriptions-tracker/id6760548018)
- [hYYa ai: Local LLM & Cloud AI](https://appshunter.io/ios/app/hyya-ai-local-llm-and-cloud-ai/id6767114813)
- [hYYa Encrypted Folder & Sync](https://appshunter.io/ios/app/hyya-encrypted-folder-and-sync/id6786135330)
- [hYYa Encrypted Notes & Sync](https://appshunter.io/ios/app/hyya-encrypted-notes-and-sync/id6792328099)

All apps by Hassaan Abdeen: https://appshunter.io/developer/1866789892

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-11-11.*