# PingWeather vs Curtain Calc Pro

The clearest difference is in-app purchases: Curtain Calc Pro at none against PingWeather's 3. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. PingWeather sells 3 in-app purchases, starting at $2.99 per month. Curtain Calc Pro asks for nothing beyond the download.

## The numbers

| Metric | PingWeather | Curtain Calc Pro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Size | 4 MB | 1 MB |
| Requires iOS | 17 | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 9+ | 4+ |
| Developer | [贺 周](https://appshunter.io/developer/1815397078) | [晓 郭](https://appshunter.io/developer/1895645928) |

## What reviewers say

### PingWeather

[App page](https://appshunter.io/ios/app/pingweather/id6767996533)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PingWeather Pro Monthly | $2.99 | per month |
| PingWeather Pro Annual | $19.99 | per year |
| PingWeather Pro Lifetime | $49.99 | one-time |


### Curtain Calc Pro

[App page](https://appshunter.io/ios/app/curtain-calc-pro/id6770147174)

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

**In-app purchases:** none


## Frequently asked questions

### Is PingWeather free?

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

### Is Curtain Calc Pro free?

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

### Do PingWeather or Curtain Calc Pro have ads?

Neither PingWeather nor Curtain Calc Pro shows ads.

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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.*