# VPD Chart vs GrowBotiq Lab

The clearest difference is update cadence: VPD Chart at every 3 weeks against GrowBotiq Lab's every 6 months. On price, ads, in-app purchases 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 and GrowBotiq Lab sells 3 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

VPD Chart ships an update every 3 weeks, GrowBotiq Lab every 6 months. The most recent releases landed on September 22, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | VPD Chart | GrowBotiq Lab |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (30 ratings)](https://appshunter.io/ios/app/vpd-chart/id6470015847/reviews)** | — |
| Number of ratings | **30** | — |
| Positive reviews | 73.7% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 6 months |
| Monetization | Free with in-app purchases | — |
| Size | 49 MB | 108 MB |
| Requires iOS | **15.1** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [INNOVO DEV S.R.L.](https://appshunter.io/developer/1814828527) | [danilo birbiglia](https://appshunter.io/developer/1816552368) |

## 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 |


### GrowBotiq Lab

[App page](https://appshunter.io/ios/app/growbotiq-lab/id6746380286)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $5.99 | per month |
| Pro Annual | $39.99 | per year |
| Pro Lifetime | $89.99 | one-time |


## Frequently asked questions

### Is VPD Chart free?

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

### Is GrowBotiq Lab free?

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

### Do VPD Chart or GrowBotiq Lab have ads?

Neither VPD Chart nor GrowBotiq Lab shows ads.

### Which is updated more often, VPD Chart or GrowBotiq Lab?

VPD Chart ships an update every 3 weeks, and GrowBotiq Lab every 6 months. Most recently, VPD Chart was updated on September 22, 2026 and GrowBotiq Lab on September 13, 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.*