# Bad Elf Flex vs NTRIP STX

The clearest difference is in-app purchases: Bad Elf Flex at none against NTRIP STX's 2. Bad Elf Flex also leads on update cadence (every 2 months vs every 10 months). On price, ads, device support and iOS requirement there is nothing between them.

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

Bad Elf Flex ships an update every 2 months, NTRIP STX every 10 months. The most recent releases landed on September 26, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Bad Elf Flex | NTRIP STX |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.6 (14 ratings)](https://appshunter.io/ios/app/bad-elf-flex/id1486378497/reviews)** | — |
| Number of ratings | **14** | — |
| Positive reviews | 40.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 10 months |
| Monetization | Free | — |
| Size | 33 MB | 109 MB |
| Requires iOS | 15.5 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Bad Elf, LLC.](https://appshunter.io/developer/391764721) | [ITS Geo Solutions GmbH](https://appshunter.io/developer/1362963860) |

## What reviewers say

### Bad Elf Flex

[App page](https://appshunter.io/ios/app/bad-elf-flex/id1486378497)

This utility app enhances the functionality of Bad Elf Flex and Flex Mini GNSS receivers. It allows users to monitor hardware health, adjust settings, and update firmware. For the Flex model, it also enables the purchase and application of tokens for advanced features and correction sources like SBAS and RTK.

**Highlights:** Monitor GNSS receiver health, Change hardware settings, Perform firmware updates, Purchase and load Flex Tokens, Enable hardware-based features, Access correction sources

**Features:** Vision Pro support

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Bad Elf Flex free?

Bad Elf Flex is free to download, with no in-app purchases.

### Is NTRIP STX free?

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

### Do Bad Elf Flex or NTRIP STX have ads?

Neither Bad Elf Flex nor NTRIP STX shows ads.

### Which is updated more often, Bad Elf Flex or NTRIP STX?

Bad Elf Flex ships an update every 2 months, and NTRIP STX every 10 months. Most recently, Bad Elf Flex was updated on September 26, 2026 and NTRIP STX on September 8, 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.*