📱 App Store Intelligence
VPD Tool
Nicholas Hwang · Verktyg
Rating
—
No ratings yet
Price
5,00 kr
US storefront
Size
1.7 MB
v1.0.5
Age Rating
4+
6 languages
Categories
Verktyg
Väder
Daily chart position by storefront
Daily rank history builds up over time — check back after a few more days of tracking.
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
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
Screenshots
Recent reviews (US)
No reviews collected for this app yet — review sampling is currently limited to apps ranked in the US Top 100 (Top Free, Top Paid or Top Grossing) to stay within Apple's request limits.
Chart presence — 1 Top 100 position
| Storefront | Category | Chart | Rank |
|---|---|---|---|
| Sweden | Apps | Top Paid | #39 |
Ratings by country — 1 storefront
| Storefront | Rating | Rating Count | Price |
|---|---|---|---|
| Sweden | 0.0 ★ | 0 | 5,00 kr |
Details
App Store data shown here is sourced from Apple's public iTunes RSS chart feeds and the iTunes Lookup API, collected by Zing at regular intervals. Figures may differ from Apple's internal App Store Connect analytics.
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