# Greenest Grow Network Connect vs VPD Chart

The clearest difference is in-app purchases: Greenest Grow Network Connect at none against VPD Chart's 2. Greenest Grow Network Connect also leads on rating (5.0 vs 4.5) and iOS requirement (12.1 vs 15.1). VPD Chart's advantage is update cadence (every 3 weeks vs every 5 months) and ratings volume (31 vs 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. Greenest Grow Network Connect asks for nothing beyond the download.

Greenest Grow Network Connect holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: VPD Chart has 31 ratings behind it against 1, so its average is the more settled of the two.

Greenest Grow Network Connect ships an update every 5 months, VPD Chart every 3 weeks. Both last shipped on November 3, 2026.

## The numbers

| Metric | Greenest Grow Network Connect | VPD Chart |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/greenest-grow-network-connect/id6451458638/reviews)** | [4.5 (31 ratings)](https://appshunter.io/ios/app/vpd-chart/id6470015847/reviews) |
| Number of ratings | 1 | **31** |
| Positive reviews | — | 73.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 32 MB | 49 MB |
| Requires iOS | **12.1** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Greenest Grow, LLC](https://appshunter.io/developer/1698426776) | [INNOVO DEV S.R.L.](https://appshunter.io/developer/1814828527) |

## What reviewers say

### Greenest Grow Network Connect

[App page](https://appshunter.io/ios/app/greenest-grow-network-connect/id6451458638)

This utility app allows users to connect Greenest Grow sensor and controller devices to Wi-Fi networks. It uses Bluetooth Low Energy to transmit network names and passwords directly to the devices.

**Highlights:** Wi-Fi network name transmission, Wi-Fi password transmission, Bluetooth Low Energy connectivity, Device setup for sensors and controllers

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Greenest Grow Network Connect free?

Greenest Grow Network Connect is free to download, with no in-app purchases.

### Is VPD Chart free?

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

### Which has better reviews, Greenest Grow Network Connect or VPD Chart?

Greenest Grow Network Connect is rated higher. Greenest Grow Network Connect averages 5.0 out of 5 from 1 ratings, while VPD Chart averages 4.5 from 31 ratings.

### Do Greenest Grow Network Connect or VPD Chart have ads?

Neither Greenest Grow Network Connect nor VPD Chart shows ads.

### Which is updated more often, Greenest Grow Network Connect or VPD Chart?

Greenest Grow Network Connect ships an update every 5 months, and VPD Chart every 3 weeks. Most recently, Greenest Grow Network Connect was updated on November 3, 2026 and VPD Chart on November 3, 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.*