# NTRIP STX vs proPHit seal by HPHI

The clearest difference is in-app purchases: proPHit seal by HPHI at none against NTRIP STX's 2. proPHit seal by HPHI also leads on iOS requirement (13.4 vs 15.0). NTRIP STX's advantage is device support. On price there is nothing between them.

Both are free to download. NTRIP STX sells 2 in-app purchases, starting at $4.49 per month. proPHit seal by HPHI asks for nothing beyond the download.

## The numbers

| Metric | NTRIP STX | proPHit seal by HPHI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | — |
| Update frequency | Every 10 months | — |
| Size | 109 MB | 18 MB |
| Requires iOS | 15.0 | **13.4** |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [ITS Geo Solutions GmbH](https://appshunter.io/developer/1362963860) | [domX Private Company](https://appshunter.io/developer/1544055683) |

## What reviewers say

### NTRIP STX

[App page](https://appshunter.io/ios/app/ntrip-stx/id1606816934)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Professional - Monthly | $4.49 | per month |
| Professional - Annual | $46.99 | per year |


### proPHit seal by HPHI

[App page](https://appshunter.io/ios/app/prophit-seal-by-hphi/id6504679005)

**In-app purchases:** none


## Frequently asked questions

### Is NTRIP STX free?

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

### Is proPHit seal by HPHI free?

proPHit seal by HPHI is free to download, with no in-app purchases.

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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.*