# ST100 Configuration Tool vs XML / JSON Viewer

The clearest difference is in-app purchases: ST100 Configuration Tool at none against XML / JSON Viewer's 1. ST100 Configuration Tool also leads on ads (none vs shown) and iOS requirement (12.0 vs 15.0). XML / JSON Viewer's advantage is update cadence (every 3 weeks vs every 18 months). 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. ST100 Configuration Tool asks for nothing beyond the download.

ST100 Configuration Tool ships an update every 18 months, XML / JSON Viewer every 3 weeks. The most recent releases landed on October 15, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | ST100 Configuration Tool | XML / JSON Viewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/st100-configuration-tool/id1498563596/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 18 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 19 MB | 46 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Globalstar Inc](https://appshunter.io/developer/881495413) | [Seiya.k](https://appshunter.io/developer/383021944) |

## What reviewers say

### ST100 Configuration Tool

[App page](https://appshunter.io/ios/app/st100-configuration-tool/id1498563596)

Configure and update your ST100 Satellite Transmitter with this dedicated application. Ensure your device is running the latest firmware and settings for optimal performance.

**Highlights:** Update ST100 firmware, Configure ST100 settings, Manage Satellite Transmitter

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is ST100 Configuration Tool free?

ST100 Configuration Tool is free to download, with no in-app purchases.

### Is XML / JSON Viewer free?

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

### Do ST100 Configuration Tool or XML / JSON Viewer have ads?

XML / JSON Viewer shows ads; ST100 Configuration Tool does not.

### Which is updated more often, ST100 Configuration Tool or XML / JSON Viewer?

ST100 Configuration Tool ships an update every 18 months, and XML / JSON Viewer every 3 weeks. Most recently, ST100 Configuration Tool was updated on October 15, 2026 and XML / 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.*