# ACN/PCN Calculator vs Compass Pilot Selection

The clearest difference is in-app purchases: Compass Pilot Selection at none against ACN/PCN Calculator's 27. Compass Pilot Selection also leads on update cadence (fortnightly vs every 2 months) and iOS requirement (15.0 vs 17.6). On price, ads and device support there is nothing between them.

Both are free to download. ACN/PCN Calculator sells 27 one-off in-app purchases. Compass Pilot Selection asks for nothing beyond the download.

ACN/PCN Calculator ships an update every 2 months, Compass Pilot Selection fortnightly. The most recent releases landed on November 2, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | ACN/PCN Calculator | Compass Pilot Selection |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (144 ratings)](https://appshunter.io/ios/app/acnpcn-calculator/id1049063069/reviews)** | — |
| Number of ratings | **144** | — |
| Positive reviews | 45.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | Free with in-app purchases | — |
| Size | 4 MB | 226 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | **iPhone, iPad** | iPad |
| Age rating | 4+ | 17+ |
| Developer | [AeroKitPro LLC](https://appshunter.io/developer/1049063068) | [Compass International BV](https://appshunter.io/developer/1566773835) |

## What reviewers say

### ACN/PCN Calculator

[App page](https://appshunter.io/ios/app/acnpcn-calculator/id1049063069)

This app calculates aircraft pavement classification numbers (PCN) and aircraft classification numbers (ACN) to assess airport pavement strength. It helps pilots and aviation professionals ensure safe operations by verifying aircraft weight limitations on runways, taxiways, and aprons.

**Highlights:** ACN/PCN calculation, Pavement strength evaluation, Aircraft weight verification, ICAO ACN/PCN method, Comprehensive aircraft database, User-friendly interface

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

**In-app purchases (27)**

| Purchase | Price | Billing |
| --- | --- | --- |
| G600 (41.7t) | Free | one-time |
| B737 BBJ (77.7t) | $4.99 | one-time |
| G650 (45.3t) | $4.99 | one-time |
| Global 5000 (42.0t) | $4.99 | one-time |
| Global 5000 GVFD (42.0t) | $4.99 | one-time |
| Global 6000 (45.2t) | $4.99 | one-time |
| Global Express (44.5t) | $4.99 | one-time |
| G650ER (47.1t) | $4.99 | one-time |
| G650ER (45.3t) | $4.99 | one-time |
| G650ER (45.1t) | $4.99 | one-time |
| G550 (41.4t) | $4.99 | one-time |
| G450 (33.7t) | $4.99 | one-time |
| G280 (18.0t) | $4.99 | one-time |
| GIV-SP (34.0) | $4.99 | one-time |
| CL300 (17.69t) | $4.99 | one-time |
| Global 7500 (52.2t) | $4.99 | one-time |
| GVII-G600 (43.09t) | $4.99 | one-time |
| Citation XLS+ (9.25t) | $4.99 | one-time |
| FALCON 7X (31.8t) | $4.99 | one-time |
| GV (41.2t) | $4.99 | one-time |
| FALCON 2000EX (19.27t) | $4.99 | one-time |
| Global 6000 (44.5t) | $4.99 | one-time |
| G700 (48.9t) | $4.99 | one-time |
| GVII-G500 (36.28t) | $4.99 | one-time |
| Global Express (45.2t) | $4.99 | one-time |
| G450 (34.0t) | $4.99 | one-time |
| Global Express XRS (45.2t) | $4.99 | one-time |


### Compass Pilot Selection

[App page](https://appshunter.io/ios/app/compass-pilot-selection/id6448920115)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ACN/PCN Calculator free?

ACN/PCN Calculator is free to download, with in-app purchases available.

### Is Compass Pilot Selection free?

Compass Pilot Selection is free to download, with no in-app purchases.

### Do ACN/PCN Calculator or Compass Pilot Selection have ads?

Neither ACN/PCN Calculator nor Compass Pilot Selection shows ads.

### Which is updated more often, ACN/PCN Calculator or Compass Pilot Selection?

ACN/PCN Calculator ships an update every 2 months, and Compass Pilot Selection fortnightly. Most recently, ACN/PCN Calculator was updated on November 2, 2026 and Compass Pilot Selection on October 27, 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.*