# DevKit vs JSON Viewer

The clearest difference is in-app purchases: JSON Viewer at none against DevKit's 2. DevKit's advantage is update cadence (every 10 days vs every 4 months) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. DevKit sells 2 in-app purchases, starting at $9.99 per month. JSON Viewer asks for nothing beyond the download.

DevKit ships an update every 10 days, JSON Viewer every 4 months. The most recent releases landed on October 10, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | DevKit | JSON Viewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/devkit-json-jwt-and-dev-tools/id6754946567/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 4 months |
| Monetization | Freemium | — |
| Size | 52 MB | 4 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Alexander Herdt](https://appshunter.io/developer/1851072441) | [LEAN ASIA CO., LTD](https://appshunter.io/developer/1815050814) |

## What reviewers say

### DevKit

[App page](https://appshunter.io/ios/app/devkit-json-jwt-and-dev-tools/id6754946567)

This app provides a suite of offline developer tools for formatting, debugging, encoding, and converting data. It keeps all your work on your device, ensuring privacy and accessibility without an internet connection. Features include JSON formatting, JWT decoding, hash generation, and QR code creation.

**Highlights:** 30+ offline developer utilities, JSON, HTML, CSS, JS, XML, SQL formatting, JWT decoding and certificate inspection, Base64, URL, and HTML encoding/decoding, Hash generation (MD5, SHA-256), Timestamp and number base conversion, QR code generation

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $9.99 | per month |
| Pro Yearly | $39.99 | per year |


### JSON Viewer

[App page](https://appshunter.io/ios/app/json-viewer-formatter-tree/id6772258771)

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

**In-app purchases:** none


## Frequently asked questions

### Is DevKit free?

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

### Is JSON Viewer free?

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

### Do DevKit or JSON Viewer have ads?

Neither DevKit nor JSON Viewer shows ads.

### Which is updated more often, DevKit or JSON Viewer?

DevKit ships an update every 10 days, and JSON Viewer every 4 months. Most recently, DevKit was updated on October 10, 2026 and JSON Viewer on October 7, 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.*