# JSON Master vs CSV Viewer and Editor

The clearest difference is ads: CSV Viewer and Editor at none against JSON Master's shown. JSON Master's advantage is update cadence (every 9 days vs every 6 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. JSON Master sells 3 in-app purchases, starting at $2.99 per 7 days and CSV Viewer and Editor sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

JSON Master ships an update every 9 days, CSV Viewer and Editor every 6 months. The most recent releases landed on October 3, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | JSON Master | CSV 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 | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 9 days** | Every 6 months |
| Monetization | Free with in-app purchases | — |
| Size | 41 MB | 41 MB |
| Requires iOS | 15.0 | 15.0 |
| 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 |


### CSV Viewer and Editor

[App page](https://appshunter.io/ios/app/csv-viewer-and-editor/id6761209158)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| csvvedit Pro Monthly | $1.99 | per month |
| csvvedit Pro Lifetime | $9.99 | one-time |


## Frequently asked questions

### Is JSON Master free?

JSON Master is free to download, with in-app purchases available.

### Is CSV Viewer and Editor free?

CSV Viewer and Editor is free to download, with in-app purchases available.

### Do JSON Master or CSV Viewer and Editor have ads?

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

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

JSON Master ships an update every 9 days, and CSV Viewer and Editor every 6 months. Most recently, JSON Master was updated on October 3, 2026 and CSV 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.*