# JSON Viewer(Pro) vs PromptMaster

The clearest difference is price: PromptMaster at Free against JSON Viewer(Pro)'s $2.99. JSON Viewer(Pro)'s advantage is in-app purchases (none vs 2) and iOS requirement (12.0 vs 18.2). On ads and device support there is nothing between them.

PromptMaster is free to download; JSON Viewer(Pro) costs $2.99 up front. PromptMaster sells 2 in-app purchases, starting at $1.99 per month. JSON Viewer(Pro) asks for nothing beyond the download.

## The numbers

| Metric | JSON Viewer(Pro) | PromptMaster |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Size | 64 MB | 8 MB |
| Requires iOS | **12.0** | 18.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | +4 | 4+ |
| Developer | [Hrishi Suthar](https://appshunter.io/developer/1660005858) | [Elena Kryvytska](https://appshunter.io/developer/1364086158) |

## What reviewers say

### JSON Viewer(Pro)

[App page](https://appshunter.io/ios/app/json-viewerpro/id6740746553)

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

**In-app purchases:** none


### PromptMaster

[App page](https://appshunter.io/ios/app/promptmaster/id6744132613)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $1.99 | per month |
| Annual Premium | $14.99 | per year |


## Frequently asked questions

### Is JSON Viewer(Pro) free?

JSON Viewer(Pro) costs $2.99, with no in-app purchases.

### Is PromptMaster free?

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

### Do JSON Viewer(Pro) or PromptMaster have ads?

Neither JSON Viewer(Pro) nor PromptMaster shows ads.

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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.*