# PilotCalc Pro vs Aviation Weather Decoder

The clearest difference is in-app purchases: PilotCalc Pro at none against Aviation Weather Decoder's 1. Aviation Weather Decoder's advantage is update cadence (every 4 weeks vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Aviation Weather Decoder sells 1 in-app purchase, starting at $0.99 per month. PilotCalc Pro asks for nothing beyond the download.

PilotCalc Pro ships an update every 3 months, Aviation Weather Decoder every 4 weeks. The most recent releases landed on September 10, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | PilotCalc Pro | Aviation Weather Decoder |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 4 weeks** |
| Size | 18 MB | 8 MB |
| Requires iOS | 18.6 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Vinayak Raghubir Sharma](https://appshunter.io/developer/1884889440) | [阳 何](https://appshunter.io/developer/6777476774) |

## What reviewers say

### PilotCalc Pro

[App page](https://appshunter.io/ios/app/pilotcalc-pro/id6773768107)

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

**In-app purchases:** none


### Aviation Weather Decoder

[App page](https://appshunter.io/ios/app/aviation-weather-decoder/id6787396332)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Metar Decoder Premium | $0.99 | per month |


## Frequently asked questions

### Is PilotCalc Pro free?

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

### Is Aviation Weather Decoder free?

Aviation Weather Decoder is free to download, with in-app purchases available.

### Do PilotCalc Pro or Aviation Weather Decoder have ads?

Neither PilotCalc Pro nor Aviation Weather Decoder shows ads.

### Which is updated more often, PilotCalc Pro or Aviation Weather Decoder?

PilotCalc Pro ships an update every 3 months, and Aviation Weather Decoder every 4 weeks. Most recently, PilotCalc Pro was updated on September 10, 2026 and Aviation Weather Decoder on September 18, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*