# ACN/PCN Calculator vs CL650 CMS Crew Application

The clearest difference is in-app purchases: CL650 CMS Crew Application at none against ACN/PCN Calculator's 26. CL650 CMS Crew Application also leads on iOS requirement (12.1 vs 17.6). ACN/PCN Calculator's advantage is update cadence (every 2 months vs every 14 months). On price, ads and device support there is nothing between them.

Both are free to download. ACN/PCN Calculator sells 26 one-off in-app purchases. CL650 CMS Crew Application asks for nothing beyond the download.

ACN/PCN Calculator ships an update every 2 months, CL650 CMS Crew Application every 14 months. The most recent releases landed on October 21, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | ACN/PCN Calculator | CL650 CMS Crew Application |
| --- | --- | --- |
| 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** | Every 14 months |
| Monetization | Free with in-app purchases | — |
| Size | 4 MB | 34 MB |
| Requires iOS | 17.6 | **12.1** |
| Devices | **iPhone, iPad** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [AeroKitPro LLC](https://appshunter.io/developer/1049063068) | [Lufthansa Technik AG - Innovation](https://appshunter.io/developer/419109455) |

## 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 (26)**

| 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 |
| 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 |


### CL650 CMS Crew Application

[App page](https://appshunter.io/ios/app/cl650-cms-crew-application/id1132574457)

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

**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 CL650 CMS Crew Application free?

CL650 CMS Crew Application is free to download, with no in-app purchases.

### Do ACN/PCN Calculator or CL650 CMS Crew Application have ads?

Neither ACN/PCN Calculator nor CL650 CMS Crew Application shows ads.

### Which is updated more often, ACN/PCN Calculator or CL650 CMS Crew Application?

ACN/PCN Calculator ships an update every 2 months, and CL650 CMS Crew Application every 14 months. Most recently, ACN/PCN Calculator was updated on October 21, 2026 and CL650 CMS Crew Application on October 10, 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.*