# NDB Pro vs qth locator

The clearest difference is in-app purchases: qth locator at none against NDB Pro's 1. qth locator also leads on update cadence (every 4 days vs every 6 weeks). NDB Pro's advantage is iOS requirement (8.0 vs 15.6). On price, ads and device support there is nothing between them.

Both are free to download. NDB Pro sells 1 in-app purchase, starting at $8.99 per year. qth locator asks for nothing beyond the download.

NDB Pro ships an update every 6 weeks, qth locator every 4 days. The most recent releases landed on October 24, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | NDB Pro | qth locator |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 4 days** |
| Monetization | Free with in-app purchases | — |
| Size | 49 MB | 18 MB |
| Requires iOS | **8.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [P8G Software](https://appshunter.io/developer/1234581801) | [micro systems](https://appshunter.io/developer/1023315804) |

## What reviewers say

### NDB Pro

[App page](https://appshunter.io/ios/app/ndb-pro/id1239473561)

This app provides pilots with a comprehensive global database of Non-Directional Beacons (NDBs). Access frequency, localization, and callsign information for navigation. A yearly subscription offers continuous updates to the NDB beacon database.

**Highlights:** Global NDB database, Frequency, localization, callsign data, Updated beacon information, Useful for pilots, Yearly subscription for updates

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| NDB Yearly Subscription | $8.99 | per year |


### qth locator

[App page](https://appshunter.io/ios/app/qth-locator/id6502876879)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is NDB Pro free?

NDB Pro is free to download, with in-app purchases available.

### Is qth locator free?

qth locator is free to download, with no in-app purchases.

### Do NDB Pro or qth locator have ads?

Neither NDB Pro nor qth locator shows ads.

### Which is updated more often, NDB Pro or qth locator?

NDB Pro ships an update every 6 weeks, and qth locator every 4 days. Most recently, NDB Pro was updated on October 24, 2026 and qth locator on October 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.*