# HTML Viewer Editor Convert PDF vs JSON Viewer and Editor

The clearest difference is review sentiment: JSON Viewer and Editor at 50% against HTML Viewer Editor Convert PDF's 0%. JSON Viewer and Editor also leads on in-app purchases (none vs 2) and update cadence (every 3 months vs every 9 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. HTML Viewer Editor Convert PDF sells 2 in-app purchases, starting at $4.99 per 7 days. JSON Viewer and Editor asks for nothing beyond the download.

HTML Viewer Editor Convert PDF ships an update every 9 months, JSON Viewer and Editor every 3 months. The most recent releases landed on October 14, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | HTML Viewer Editor Convert PDF | JSON Viewer and Editor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/html-viewer-editor-convert-pdf/id6755111609/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | **50.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 3 months** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 47 MB | 41 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [NEURASYNC](https://appshunter.io/developer/1639101560) | [Sahana A S](https://appshunter.io/developer/1800491118) |

## What reviewers say

### HTML Viewer Editor Convert PDF

[App page](https://appshunter.io/ios/app/html-viewer-editor-convert-pdf/id6755111609)

This app allows users to instantly open, view, and edit HTML files directly on their device. It offers features like JavaScript toggling, dark mode, and conversion to PDF, ensuring privacy and speed with on-device processing.

**Highlights:** Instant HTML file opening, JavaScript toggling and dark mode, Search and inspect HTML source, Convert HTML to PDF, Bulk PDF conversion, Built-in HTML editor with live preview, On-device processing for privacy

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| HTML Viewer Pro Weekly Sub | $4.99 | per 7 days |
| HTML Viewer Lifetime Pro Access | $14.99 | one-time |


### JSON Viewer and Editor

[App page](https://appshunter.io/ios/app/json-viewer-and-editor/id6760624709)

This app allows users to view, edit, format, validate, compare, and convert JSON files with an intuitive interface. It offers features like tree and code views, a smart editor with live validation, and the ability to export to various formats. It also includes an API client and a JSON comparison tool.

**Highlights:** Tree and code view with syntax highlighting, Smart JSON editor with live validation, JSON fixer for repairing broken files, Export to PDF, Excel, YAML, CSV, XML, API client for sending HTTP requests, Side-by-side JSON comparison, JSON Schema validation and JSONPath querying

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is HTML Viewer Editor Convert PDF free?

HTML Viewer Editor Convert PDF is free to download, with in-app purchases available.

### Is JSON Viewer and Editor free?

JSON Viewer and Editor is free to download, with no in-app purchases.

### Do HTML Viewer Editor Convert PDF or JSON Viewer and Editor have ads?

Neither HTML Viewer Editor Convert PDF nor JSON Viewer and Editor shows ads.

### Which is updated more often, HTML Viewer Editor Convert PDF or JSON Viewer and Editor?

HTML Viewer Editor Convert PDF ships an update every 9 months, and JSON Viewer and Editor every 3 months. Most recently, HTML Viewer Editor Convert PDF was updated on October 14, 2026 and JSON Viewer and Editor on October 13, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*