AppPriceDataObserved data
AppPriceData
Nicholas Hwang
Know your VPD in seconds.
Current observed download price for the selected storefront. Open regional pricing to compare converted prices across countries.
Items currently visible on Apple’s public App Store page. This may not be the complete App Store Connect catalog.
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: [email protected]
Quick answers based on the latest observed App Store data.
The latest observed download price is $0.49. Open the official App Store link to confirm the current checkout price.
Apple’s public page currently shows 0 purchase items in this storefront. The public list may be incomplete.
Yes. App Store prices can vary by storefront, currency, taxes, and developer pricing. AppPriceData currently has 2 regional observations.
