# XML / JSON Viewer vs Umbra

The clearest difference is ads: Umbra at none against XML / JSON Viewer's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. XML / JSON Viewer sells 1 one-off in-app purchase and Umbra sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 7, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | XML / JSON Viewer | Umbra |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Size | 46 MB | 31 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Seiya.k](https://appshunter.io/developer/383021944) | [Cor Meum](https://appshunter.io/developer/1837976899) |

## 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 |


### Umbra

[App page](https://appshunter.io/ios/app/umbra/id6755661783)

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Umbra Premium Monthly | $2.99 | per month |
| Umbra Premium Yearly | $29.99 | per year |


## Frequently asked questions

### Is XML / JSON Viewer free?

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

### Is Umbra free?

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

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

XML / JSON Viewer shows ads; Umbra does not.

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

XML / JSON Viewer ships an update every 3 weeks, and Umbra every 3 weeks. Most recently, XML / JSON Viewer was updated on October 7, 2026 and Umbra on October 4, 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.*