# View Source Premier vs JSON Highlight Pro for Safari

The clearest difference is price: JSON Highlight Pro for Safari at $0.99 against View Source Premier's $6.99. View Source Premier's advantage is update cadence (every 3 weeks vs every 4 months) and chart position (#79 vs unranked). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

View Source Premier costs $6.99 and JSON Highlight Pro for Safari $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

View Source Premier ships an update every 3 weeks, JSON Highlight Pro for Safari every 4 months. The most recent releases landed on September 23, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | View Source Premier | JSON Highlight Pro for Safari |
| --- | --- | --- |
| Price | $6.99 | **$0.99** |
| Rating | **[4.1 (27 ratings)](https://appshunter.io/ios/app/view-source-premier/id1425213172/reviews)** | — |
| Number of ratings | **27** | — |
| Positive reviews | 47.1% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 4 months |
| Monetization | Paid | — |
| Best chart rank | **#79** | — |
| Size | 5 MB | 2 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod, Mac | iPhone, iPad, iPod, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Andrey Uspanov](https://appshunter.io/developer/1203890914) | [Moca LLC](https://appshunter.io/developer/1442554084) |

## What reviewers say

### View Source Premier

[App page](https://appshunter.io/ios/app/view-source-premier/id1425213172)

**Currently charting:** #79 Top Paid · Developer Tools (US App Store)

Analyze and view HTML, XML, JavaScript, CSS, JSON, and RSS code with a built-in simulator, error tracking, and request management tools. Easily format code, test JavaScript, and inspect styles and images. Supports multiple devices for enhanced productivity.

**Highlights:** Code viewing and analysis, Built-in simulator, Error tracking, JavaScript terminal testing, Style and image inspection, Request management, Code beautifier

**Features:** Vision Pro support

**In-app purchases:** none


### JSON Highlight Pro for Safari

[App page](https://appshunter.io/ios/app/json-highlight-pro-for-safari/id6667105161)

**Features:** Safari Extension, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is View Source Premier free?

View Source Premier costs $6.99, with no in-app purchases.

### Is JSON Highlight Pro for Safari free?

JSON Highlight Pro for Safari costs $0.99, with no in-app purchases.

### Do View Source Premier or JSON Highlight Pro for Safari have ads?

Neither View Source Premier nor JSON Highlight Pro for Safari shows ads.

### Which is updated more often, View Source Premier or JSON Highlight Pro for Safari?

View Source Premier ships an update every 3 weeks, and JSON Highlight Pro for Safari every 4 months. Most recently, View Source Premier was updated on September 23, 2026 and JSON Highlight Pro for Safari on September 19, 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.*