# NTRIP STX vs ALIGN RTK

The clearest difference is in-app purchases: ALIGN RTK at none against NTRIP STX's 2. ALIGN RTK also leads on iOS requirement (12.0 vs 15.0). On price, ads and device support there is nothing between them.

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

## The numbers

| Metric | NTRIP STX | ALIGN RTK |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 10 months | — |
| Size | 109 MB | 21 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [ITS Geo Solutions GmbH](https://appshunter.io/developer/1362963860) | [Align Corporation Limited](https://appshunter.io/developer/485623955) |

## What reviewers say

### NTRIP STX

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

**Features:** macOS Compatibility

**In-app purchases (2)**

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


### ALIGN RTK

[App page](https://appshunter.io/ios/app/align-rtk-1/id6480390141)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is NTRIP STX free?

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

### Is ALIGN RTK free?

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

### Do NTRIP STX or ALIGN RTK have ads?

Neither NTRIP STX nor ALIGN RTK shows ads.

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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.*