VPD Chart

Democratization of VPD

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

Vapor Pressure Deficit (VPD) chart and calculator for controlled environment horticulture (grow tent, greenhouse). Automated with sensor integration. The app calculates VPD using air temperature, relative humidity, and canopy temperature. View real-time VPD values on an interactive chart. Connect sensors for automated readings or manually input data via intuitive sliders and text inputs. Key features: • Interactive VPD chart with manual input • Default crop types • Organize charts by assigning them to different zones • Display spots that share the same VPD value • Dew point area visualization • Grow Timeline • Sync sensor historical data by importing it from sensor's app, or via cloud APIs • Explore sensor history by panning and zooming Supported bluetooth devices: • SensorPush: HT1, HT.w, HT.xw • Govee: H5051, H5072, H5074, H5075, H5100, H5101, H5102, H5103, H5104, H5105, H5174, H5177, H5179 • SwitchBot: Meter, Plus, Indoor Outdoor • Ruuvi: RuuviTag and RuuviTag Pro • Inkbird: IBS-TH1, IBS-TH1 Plus, IBS-TH2, IBS-TH2 Plus • ThermoPro: TP351, TP357, TP358, TP359 • VIVOSUN AeroLab THB1S • Shelly BLU H&T • Xiaomi Mijia 2 (LYWSD03MMC) (original and pvvx firmware) Supported devices with API connectivity: • Govee: H5051, H5071, H5103, H5179 • Pulse: One, Pro, Zero • UbiBot WS1, UbiBot WS1 Pro, UbiBot GS1, UbiBot GS2, UbiBot SP1 with external probe • Ecowitt Educational benefits: • Interactive Learning: Explore the dynamics of VPD based on changes in temperature and relative humidity by manipulating input sliders and animating the chart • Canopy - Air Temperature Link: Easily visualize and set values by linking canopy temperature to air temperature • Chart Bands Control: Toggle chart bands on/off (dew, under transpiration, prop, veg, flower, over transpiration) for a comprehensive understanding Included: 1 chart with manual input and grow timeline, device data sync & explore, default crops VPD Chart Plus subscription unlocks: • Unlimited charts • Automated VPD calculation by using sensors as the input data source • Background monitoring and Alerts (temperature, RH, VPD) • VPD history timeline, available on sensor-driven VPD charts • Custom crops Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Ratings & Reviews

  • 4.4
    out of 5
    24 Ratings

• Xiaomi Mijia 2 (LYWSD03MMC) BLE integration (original firmware and pvvx firmware with BTHome v2 advertisement format), full data sync • Ruuvi data sync over bluetooth • Sensor data retention period option in app settings • "Clear all" button for notifications

Version 3.1.1

The developer, INNOVO DEV S.R.L., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Purchases
    • Usage Data

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
  • INNOVO DEV S.R.L.
Size
  • 49.8 MB
Category
  • Utilities
Compatibility
Requires iOS 15.1 or later.
  • iPhone
    Requires iOS 15.1 or later.
  • iPad
    Requires iPadOS 15.1 or later.
  • iPod touch
    Requires iOS 15.1 or later.
  • Mac
    Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
  • English
Age Rating
4+
In-App Purchases
Yes
  • VPD Chart Plus (monthly) $2.99
  • VPD Chart Plus (annual) $29.99
  • Learn More
Copyright
  • © 2026 Innovo Dev S.R.L.
  • Developer Website
  • Privacy Policy

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