# XML / JSON Viewer vs iStructly

The clearest difference is in-app purchases: iStructly at none against XML / JSON Viewer's 1. iStructly also leads on ads (none vs shown) and update cadence (daily vs every 3 weeks). XML / JSON Viewer's advantage is iOS requirement (15.0 vs 17.0). On price and device support there is nothing between them.

Both are free to download. XML / JSON Viewer sells 1 one-off in-app purchase. iStructly asks for nothing beyond the download.

XML / JSON Viewer ships an update every 3 weeks, iStructly daily. Both last shipped on October 7, 2026.

## The numbers

| Metric | XML / JSON Viewer | iStructly |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Daily** |
| Size | 46 MB | 1 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Seiya.k](https://appshunter.io/developer/383021944) | [Basel AbuTaleb](https://appshunter.io/developer/1604005525) |

## What reviewers say

### XML / JSON Viewer

[App page](https://appshunter.io/ios/app/xml-json-viewer/id6753669541)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Unlock | $2.99 | one-time |


### iStructly

[App page](https://appshunter.io/ios/app/istructly/id6754259424)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is XML / JSON Viewer free?

XML / JSON Viewer is free to download, with in-app purchases available.

### Is iStructly free?

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

### Do XML / JSON Viewer or iStructly have ads?

XML / JSON Viewer shows ads; iStructly does not.

### Which is updated more often, XML / JSON Viewer or iStructly?

XML / JSON Viewer ships an update every 3 weeks, and iStructly daily. Most recently, XML / JSON Viewer was updated on October 7, 2026 and iStructly on October 7, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*