# JSON Master vs JSON Viewer and Editor

The clearest difference is review sentiment: JSON Master at 100% against JSON Viewer and Editor's 0%. JSON Viewer and Editor's advantage is in-app purchases (none vs 3) and ads (none vs shown). On price, update cadence and device support there is nothing between them.

Both are free to download. JSON Master sells 3 in-app purchases, starting at $2.99 per 7 days. JSON Viewer and Editor asks for nothing beyond the download.

JSON Master ships an update every 9 days, JSON Viewer and Editor weekly. The most recent releases landed on October 3, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | JSON Master | JSON Viewer and Editor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (5 ratings)](https://appshunter.io/ios/app/json-master-editor-and-viewer/id6757484875/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 9 days | **Weekly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 41 MB | 39 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tianjin Illuso Information Technology Co., Ltd.](https://appshunter.io/developer/1864792206) | [Sahana A S](https://appshunter.io/developer/1800491118) |

## What reviewers say

### JSON Master

[App page](https://appshunter.io/ios/app/json-master-editor-and-viewer/id6757484875)

This offline iOS tool formats, views, validates, and converts JSON data. It supports large files and offers privacy-safe, local processing for developers needing to debug API responses or transform data formats.

**Highlights:** Offline JSON formatting and beautifying, Tree and text view for JSON visualization, Instant JSON syntax validation, JSON to CSV, XML, Excel conversion, Large file support, Import from clipboard and files

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| JSON Master Pro (Weekly) | $2.99 | per 7 days |
| Pro (Yearly) | $14.99 | per year |
| JSON Master Pro Lifetime | $17.99 | 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 JSON Master free?

JSON Master 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 JSON Master or JSON Viewer and Editor have ads?

JSON Master shows ads; JSON Viewer and Editor does not.

### Which is updated more often, JSON Master or JSON Viewer and Editor?

JSON Master ships an update every 9 days, and JSON Viewer and Editor weekly. Most recently, JSON Master was updated on October 3, 2026 and JSON Viewer and Editor on September 25, 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.*