# Ntrip checker vs Sitelink3D 2 Support Desk

The clearest difference is update cadence: Ntrip checker at every 4 months against Sitelink3D 2 Support Desk's every 13 months. Sitelink3D 2 Support Desk's advantage is iOS requirement (10.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Ntrip checker ships an update every 4 months, Sitelink3D 2 Support Desk every 13 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | Ntrip checker | Sitelink3D 2 Support Desk |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (2 ratings)](https://appshunter.io/ios/app/ntrip-checker/id1459504498/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 13 months |
| Monetization | Ad-supported | — |
| Size | 59 MB | 50 MB |
| Requires iOS | 15.6 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Navmatix](https://appshunter.io/developer/921372764) | [Topcon Positioning Systems, Inc.](https://appshunter.io/developer/667040500) |

## What reviewers say

### Ntrip checker

[App page](https://appshunter.io/ios/app/ntrip-checker/id1459504498)

This app tests NTRIP Client connections to NTRIP Casters and analyzes RTCM streams. It allows users to configure connection parameters, select mountpoints, and view received RTCM messages, satellite data, and base station proximity.

**Highlights:** Test NTRIP Client connection, Analyze RTCM stream, Configure connection parameters, Select mountpoint, View RTCM message statistics, See GNSS satellite data

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

**In-app purchases:** none


### Sitelink3D 2 Support Desk

[App page](https://appshunter.io/ios/app/sitelink3d-2-support-desk/id1480749268)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Ntrip checker free?

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

### Is Sitelink3D 2 Support Desk free?

Sitelink3D 2 Support Desk is free to download, with no in-app purchases.

### Do Ntrip checker or Sitelink3D 2 Support Desk have ads?

Neither Ntrip checker nor Sitelink3D 2 Support Desk shows ads.

### Which is updated more often, Ntrip checker or Sitelink3D 2 Support Desk?

Ntrip checker ships an update every 4 months, and Sitelink3D 2 Support Desk every 13 months. Most recently, Ntrip checker was updated on November 3, 2026 and Sitelink3D 2 Support Desk on November 3, 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.*