VPD Tool

1.0.5

Nicholas Hwang

5.00

1 reviews

$0.49

Download from the App Store

About VPD Tool

VPD Tool is an overall app developed by Nicholas Hwang.

Download Statistics

User Ratings

VPD Tool is rated 5.00 out of 5 stars. The rating is based on one rating ratings.

App Information

VPD Tool costs $0.49 to download. The APK download size is 1.67 MB. The latest version available is 1.0.5. The last update was on May 10, 2026.

Technical Requirements

The app has a content rating of Everyone. The app has been available on Google Play August 2025.

Description

Know your VPD in seconds.
Enter temperature & humidity (or tap the interactive heatmap) to see Leaf VPD and Air VPD with scientifically labeled isolines. Choose Seedling / Veg / Flower / Late Flowering to see target VPD ranges and how best to nudge your environment to “ideal.”

Why growers love it
• Interactive heatmap: drag to explore temperature–humidity combos
• Stage presets: recommended VPD bands by plant development stage
• Leaf vs Air: leaf–air offset, dew point, absolute humidity
• Beautiful widgets: small/medium/large Home & Lock Screen widgets
• Private by design: on-device calculations, no account required

Details
• VPD = es(T) × (1 − RH/100); leaf VPD uses leaf temperature (air + ΔT)
• Absolute humidity via water vapor partial pressure (ideal gas law)
• Full support for °C/°F, metric/imperial
• Export logs to CSV

Support
Questions or feedback: support@nicksberryfarm.com

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More data about VPD Tool

Price	$0.49
Rating	5.00 based on a single rating
Ranking	Not ranked
Version	1.0.5
App download size	1.67 MB
Suitable for	Everyone

Changelog of VPD Tool

No changelog data

Developer information for Nicholas Hwang

Nicholas Hwang

N/A

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App Store Rankings for VPD Tool

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Technologies used by VPD Tool

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