GrowVPD Pro: VPD Chart
Calculator, Grow Diary & PPFD
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
GrowVPD Pro is a VPD calculator and VPD chart in one, with a grow diary, a plant problem guide and smart device automation. Enter temperature and humidity, or connect a sensor, and see the vapor pressure deficit with leaf-temperature correction. No account, no ads. Most features are free and will stay free.
VPD CHART, TABLE AND CALCULATOR
The VPD table colors the target zone for every stage — seedling, veg, flower and drying — so you know whether to raise or lower the humidity in your grow tent. Altitude adjustment, °C/°F toggle and live data from Bluetooth sensors.
PLANT PROBLEM GUIDE
Gallery of 41 diseases, deficiencies, and pests with symptoms, hand-drawn botanical plates, and specific treatments. Fully offline.
GROW DIARY
Entries from seed to harvest — temperature, humidity, VPD, pH, EC/PPM, PPFD, height, watering, nutrients, photos, and video. Harvest records with wet and dry weight per plant and yield efficiency (g/watt, g/plant). Side-by-side comparison of multiple grows, automatic grow age tracking, strain lineage.
SMART AUTOMATION
Rules based on VPD, temperature, humidity, CO2, PPFD, soil moisture, and water level. Thirteen phase presets from seedling through veg and flower to drying and curing, hysteresis, gradual light sunrise, and emergency override. Cross-brand automation — any sensor can trigger any outlet, air conditioner, or fan.
YOUR DEVICES IN ONE APP
• Local control where the device supports it: Tuya WiFi (v3.3-v3.5) — outlets, air conditioners, dehumidifiers, lights, and fans, controlled directly over your home network.
• Cloud Bridge for cloud-only-by-design devices: AC Infinity, Spider Farmer, Vivosun, Bluelab — a secure connection through the manufacturer's cloud.
• MQTT and BLE: Mars Hydro (BLE pairing + Wi-Fi/MQTT control), Tuya Zigbee hub with battery-powered sensors, BLE temperature/humidity sensors.
Tuya WiFi and Zigbee, Mars Hydro, and Bluetooth sensors are verified on real hardware. Other platforms (AC Infinity, Spider Farmer, Vivosun, Bluelab, SANlight) are being actively tested and expanded.
MULTI-DEVICE SYNC
Pair with the GrowVPD Desktop Hub by QR code. Diary entries, photos and rules stay in sync, end-to-end encrypted — over your local network or our encrypted relay.
PPFD / DLI METER
Lighting recommendations by growth phase and light schedule, dynamic DLI calculation, and a PPFD meter that estimates light with the phone's camera. Try it with three free measurements; unlimited with Pro.
CALCULATORS AND TEMPLATES
Nutrient dosing, substrate mixing, living soil, yield estimation, and airflow calculation (CFM). 20 ready-made grow templates with weekly temperature, humidity, and light targets.
EQUIPMENT AND NUTRIENT DATABASE
223 products from 46 brands — lights, tents, ventilation — and 287 nutrient products. A setup assistant calculates power draw, airflow, and tent coverage.
PRIVACY
Data stays on your phone. PIN or biometric lock, hidden photos from the device gallery, stealth mode. Green light turns the display into a safe light for nighttime plant checks.
11 LANGUAGES
Czech, English, German, Spanish, Dutch, French, Italian, Portuguese, Polish, Thai, and Hebrew.
The app is free and genuinely usable without paying — VPD chart, calculators, diary, templates, disease gallery and device automation, all without ads. The free tier covers 1 grow, 1 tent, 3 devices and 1 automation rule; Pro lifts those limits and adds the PPFD/DLI meter, diary video, the full archive and more tools.
Built by a small team of growers and developers — actively maintained and shaped by your feedback. From growers, for growers.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://growvpd.pro/privacy/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
What's new in 1.0.3
• Mars Hydro: adding a device over Bluetooth starts with your Mars Hydro account. If you allow location, the Wi-Fi name fills in from the network your iPhone is on.
• iTime: every outlet shows the program stored in the device, the editors open with it, and the sheet refreshes on its own. Adlite spectra (UV, IR, Deep Red, Blue) can follow your main light.
• Remove a device from the list with ×, and add it back under Add Device » From the account.
• The light dialog follows the lamp live, and manual entry on the VPD tab sits right in the top bar.
• Smaller fixes and polish.
The developer, VPD Labs LLC, 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:
- Identifiers
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- VPD Labs LLC
- Size
- 51.8 MB
- Category
- Utilities
- Compatibility
Requires iOS 16.0 or later.
- iPhone
Requires iOS 16.0 or later. - Mac
Requires macOS 13.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 10 more
- English, Czech, Dutch, French, German, Hebrew, Italian, Polish, Portuguese, Spanish, Thai
- Age Rating
13+
- 13+
- Infrequent
Alcohol, Tobacco, Drug Use or References
- In-App Purchases
Yes
- GrowVPD Pro Lifetime $49.99
- GrowVPD Pro Monthly $3.99
- GrowVPD Pro Yearly $24.99
- Copyright
- © 2026 VPD Labs LLC