# VPD Chart vs Nugs

The clearest difference is in-app purchases: Nugs at none against VPD Chart's 2. Nugs also leads on iOS requirement (13.0 vs 15.1). On price, ads and device support there is nothing between them.

Both are free to download. VPD Chart sells 2 in-app purchases, starting at $3.99 per month. Nugs asks for nothing beyond the download.

## The numbers

| Metric | VPD Chart | Nugs |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (31 ratings)](https://appshunter.io/ios/app/vpd-chart/id6470015847/reviews)** | — |
| Number of ratings | **31** | — |
| Positive reviews | 73.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Monetization | Free with in-app purchases | — |
| Size | 49 MB | 35 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [INNOVO DEV S.R.L.](https://appshunter.io/developer/1814828527) | [Eliseu Codinhoto](https://appshunter.io/developer/1796918657) |

## What reviewers say

### VPD Chart

[App page](https://appshunter.io/ios/app/vpd-chart/id6470015847)

This app calculates Vapor Pressure Deficit (VPD) using air temperature, relative humidity, and canopy temperature. It offers real-time charting, sensor integration, and educational tools to understand plant growth environments. Organize data by zones and visualize dew point areas.

**Highlights:** VPD calculation, Interactive VPD chart, Sensor integration, Zone organization, Dew point visualization, Grow Timeline

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VPD Chart Plus (monthly) | $3.99 | per month |
| VPD Chart Plus (annual) | $29.99 | per year |


### Nugs

[App page](https://appshunter.io/ios/app/nugs/id6742116231)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is VPD Chart free?

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

### Is Nugs free?

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

### Do VPD Chart or Nugs have ads?

Neither VPD Chart nor Nugs 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.*