# AC vs NDB Pro

The clearest difference is in-app purchases: AC at none against NDB Pro's 1. NDB Pro's advantage is ads (none vs shown) and update cadence (every 6 weeks vs every 4 months). On price, review sentiment, monetization model 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. AC asks for nothing beyond the download.

AC ships an update every 4 months, NDB Pro every 6 weeks. The most recent releases landed on October 8, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | AC | NDB Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.5 (13 ratings)](https://appshunter.io/ios/app/ac-u-kwik/id688911557/reviews)** | — |
| Number of ratings | **13** | — |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 6 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 29 MB | 49 MB |
| Requires iOS | 11.0 | **8.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Informa Media](https://appshunter.io/developer/1444766102) | [P8G Software](https://appshunter.io/developer/1234581801) |

## What reviewers say

### AC

[App page](https://appshunter.io/ios/app/ac-u-kwik/id688911557)

Access comprehensive data for business aviation, including airports, FBOs, and service providers worldwide or in North America. Detailed airport diagrams and listings for ground transportation, maintenance, and catering are included. Requires a valid subscription and login credentials.

**Highlights:** Airport and FBO data, Global and North American coverage, Service provider listings, Ground transportation, Maintenance providers, Catering companies, Airport diagrams

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is AC free?

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

### Is NDB Pro free?

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

### Do AC or NDB Pro have ads?

AC shows ads; NDB Pro does not.

### Which is updated more often, AC or NDB Pro?

AC ships an update every 4 months, and NDB Pro every 6 weeks. Most recently, AC was updated on October 8, 2026 and NDB Pro on September 22, 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.*