GrowVPD Pro

A complete companion for indoor growers — VPD chart, disease & pest diagnostics, grow diary, and smart device automation across 8 platforms in one app. No account, no ads. Most features are free and will stay free.

VPD CHART AND TABLE Interactive VPD heatmap with color-coded zones for each growth stage. Tap anywhere to instantly see temperature, humidity, and VPD. Leaf temperature correction, altitude adjustment, target VPD band, °C/°F toggle, and live data from Bluetooth sensors.

DISEASE & PEST DIAGNOSTICS 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.

8 PLATFORMS UNDER ONE APP We unify 8 device manufacturers into a single dashboard — instead of 8 different apps and 8 different accounts. • 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. We always pick the fastest, most local path — cloud is used only where the manufacturer leaves no other option.

VERIFIED HARDWARE 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.

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.

Discovery signals