Early access · Free · Offline

Your Grow Room,
Under Control.

VPD chart, grow diary, and smart automation for Tuya, Mars Hydro, AC Infinity, Spider Farmer, Vivosun, Bluelab & SANlight — all in one app. No sign-up, no bloat.

We’re a one-developer indie studio at the very beginning of this journey. Every integration gets tuned on real hardware in a real grow room, every translation is hand-checked, every Discord message gets a reply. We’re actively sourcing more gear and reaching out to brands — but until then we ship slow, careful releases, and every early user genuinely shapes what comes next.

11 languages
200+ equipment
7 smart device brands
VPD Chart
Current VPD 1.24 kPa Optimal
VPD Diary Auto PPFD More

Everything You Need
to Grow Better

Three core tools. One free app. Zero compromise.

VPD Chart & Table

Interactive heatmap with color-coded zones for each growth stage. Leaf temperature correction, dew point calculation, live Bluetooth sensor support.

Grow Diary

Seed to harvest. Photos, pH, EC, PPFD, nutrients, harvest stats. Compare multiple grows side by side.

Smart Automation

Connect Tuya, Mars Hydro, AC Infinity, Spider Farmer, Vivosun, Bluelab & SANlight in one system. Let an AC Infinity controller tune its own fan from live VPD, run sunrise/sunset schedules across Mars Hydro, Spider Farmer and Vivosun LEDs, or let a Bluelab Pulse flag pH drift before it hurts the plants — all from the same app.

VPD-based rules Light schedules & dimming Sunrise/sunset simulation Equipment profiles Camera snapshots to diary Sensor data auto-logged Room → Tent hierarchy Energy monitoring Climate control (AC, dehumidifier) Soil sensors & irrigation Autopot & reservoir monitoring

Most devices use internet (WiFi or mobile data) & cloud APIs. SANlight connects via Bluetooth. Everything else in the app works fully offline.

PRO

Disease & Pest Guide

Offline reference for 30+ diseases, deficiencies and pests with symptoms and treatment guides.

And Much More

🧪
Nutrient Calculator
69+ synthetic fertilizers across 7 brands, plus full living soil schedules with compost tea, top-dress timing & pro amendments
🌱
Substrate Mixer
Coco, peat, super soil & living soil recipes — aeration, CEC and amendments tuned per stage
💨
Ventilation Calculator
CFM sizing for your tent
💡
PPFD / DLI Guide
Light recommendations per stage
📱
PPFD Meter
Measure light intensity with your phone
🔧
200+ Equipment DB
47 brands, specs, setup builder
📋
12 Grow Templates
Soil, coco, DWC, SOG, SCROG
🔆
Light Scheduling
Per-device schedules with sunrise/sunset
🏠
Equipment Profiles
Save tent setups, reuse across grows
📊
Yield Estimator
g/watt, g/plant predictions
🔒
Privacy & Security
PIN, biometric, stealth mode
🌐
11 Languages
EN DE ES NL FR IT PT PL CS TH HE

See It in Action

Designed for growers, by a grower

VPD Chart
Interactive VPD Heatmap
Grow Diary
Full Grow Tracking
Automation
Smart Device Control
Diseases
Disease & Pest Guide
Equipment
200+ Products
PPFD Guide
Light Recommendations
Nutrients
Dosage Calculator
Security
PIN & Biometric Lock

One App. All Your Brands.
Working Together.

Most growers mix equipment from different brands. Their apps don't talk to each other. GrowVPD Pro connects them all.

AC Infinity Ctrl VPD drifting? AC Infinity Fan

Your AC Infinity Controller 69/89 Pro reads its own temperature and humidity probe, calculates live VPD, and tunes the Cloudline fan through the UIS cable to stay inside the target band for each growth stage. Same brand, one signed rule — the controller stays in charge, the app just sets the target.

Any Temp Sensor Night too cold? Tuya Plug → Heater

Below 18°C at night? A Tuya smart plug flips a regular oil heater on until the tent recovers, then backs off. Works with whichever sensor you trust — AC Infinity, Bluelab, SwitchBot or a cheap Tuya Zigbee probe — the plug is just the dumb switch in the middle.

Vivosun GrowHub CO2 low during day? Vivosun CO2 Outlet

Your Vivosun GrowHub sees CO2 drop under target during the photoperiod, opens a Vivosun smart outlet feeding the CO2 regulator, then closes it once levels recover. The rule only runs with lights on and respects a daily runtime cap so you never dose in the dark.

Bluelab Pulse pH drifting? Push Notification

A Bluelab Pulse keeps watching root-zone pH through the Edenic cloud. When it drifts outside your safe range, GrowVPD Pro pushes a notification with the reading and current stage — nutrient correction stays a deliberate human decision, never a silent auto-dose.

Any Sensor Auto diary Grow Diary

Sensor readings (temp, humidity, VPD, PPFD, CO2) are logged to your grow diary every 15 minutes. Camera snapshots too. Your diary fills itself.

7 Platforms

Tuya, Mars Hydro, AC Infinity (beta), Spider Farmer (beta), Vivosun (beta), Bluelab (beta), SANlight (beta)

12+ Condition Types

VPD, temperature, humidity, CO2, PPFD, soil moisture, soil temperature, soil EC, water level, and more. All with hysteresis and safety limits.

Tested on Real Grows

Our lab is an actual grow room, not a bench rig with a multimeter. Mars Hydro lights, AC Infinity controllers, Tuya sensors and a Bluelab Pulse all live in there together, running on the same plants you’d care about. We’re still expanding the rig and actively reaching out to Spider Farmer, Vivosun and SANlight for test units. If any of these teams want to collaborate on official integrations, we’d love that conversation. Until then, we test what we own, we’re honest about what’s in beta, and we ship quiet fixes the moment we find them.

Smart automation requires internet (WiFi or mobile data) — devices are controlled through their manufacturer cloud APIs (Tuya Cloud, Mars Hydro MQTT, etc.). All other features in the app work fully offline.

Mix & Match Your Brands

No other grow app lets you combine devices from different manufacturers into one automation system.

Supported
T

Tuya / Smart Life

Sensors, plugs, cameras, AC units, irrigation

Supported
MH

Mars Hydro

LED lights, fans, sensors

Beta
AC

AC Infinity

Controllers, fans, sensors

Beta
SF

Spider Farmer

LED lights, fans, sensors

Beta
V

Vivosun

Controllers, fans, lights

Beta
BL

Bluelab

pH, EC & temperature

Beta
SL

SANlight

BLE only — professional LEDs

Our test bench started with one Tuya sensor and a borrowed Mars Hydro panel. It now spans seven platforms, but we’re still missing pieces — the newer Vivosun controllers, the SANlight Q-series, the multimedia Bluelab Pulse. If you own gear we haven’t touched yet, jump on Discord and we’ll walk through the integration together. And if you’re a brand who wants to ship better software side by side with us, our door is wide open.

Most Features Are Free.
Pro Unlocks Everything.

No limits on core features. Upgrade only if you want the advanced stuff.

Free

$0

Forever

  • VPD Chart & Table
  • Grow Diary with Harvest
  • 12 Grow Templates
  • Nutrient & Substrate Calculators
  • Ventilation & Yield Calculators
  • Disease & Pest Guide (30+)
  • Equipment Database (200+)
  • PPFD / DLI Guide
  • 11 Languages
  • Smart Automation (7 platforms)
  • Diary Export (PDF)
  • BLE Sensor
  • Analytics & Predictions
Download Free

Pro

$3.99/mo

Cancel anytime

  • Everything in Free
  • Smart Automation (7 platforms)
  • Light Scheduling & Profiles
  • Diary Export (PDF/JSON)
  • BLE Sensor Support
  • Analytics & Predictions
  • Equipment Profiles
  • Camera Auto-Snapshots
  • Photo Privacy & Stealth
  • No Ads
  • Priority Support
Get Pro
Monthly $3.99/mo
Lifetime $49.99 Pay once, keep forever

Built Different

15
MB

Competitors are 100+ MB.
We keep it light.

0
Cloud

Offline-first. Your data
stays on your device.

0
Sign-up

No email, no account.
Open and grow.

7
Platforms

Tuya, Mars Hydro, AC Infinity,
Spider Farmer, Vivosun, Bluelab, SANlight.

11
Languages

Most competitors have 1-3.
We speak yours.

80
% Free

Core features are free forever.
No hard paywalls.

Built in the open.
By a grower. For growers.

GrowVPD Pro isn’t a polished product from a 50-person team. It’s a one-developer studio, an active grow room, and a stack of hardware on the desk — that’s the whole company.

Every feature in this app started as something missing from my own grow. The VPD chart was the first thing — I got tired of typing temperature and humidity into a calculator three times a day, so I built a heatmap. Then I wanted a diary that didn’t sell my photos to a server I’d never heard of. Then I wanted my Mars Hydro light, my AC Infinity controller and my Tuya plugs to actually talk to each other, instead of each pretending they were the only device in the world. So I built that too. The whole app is just a list of problems I had at 2am, solved one by one.

I read every Discord message myself. I write the code, I run the tests, I shoot the screenshots, I translate to eleven languages because growers who don’t speak English deserve a real app and not a Google-translate hack. There’s no marketing team, no sales pipeline, no growth hacker. When something breaks you tell me directly, and most of the time the fix lands the same week. When something’s missing you suggest it on Discord, and it might land in the next release. That’s the entire feedback loop.

We’re early, and we’re honest about it. Some integrations are rock-solid — Tuya and Mars Hydro have been running on real grows for months. Others sit in beta because I haven’t been able to source every controller and sensor yet, and I refuse to ship integrations I can’t test against the actual hardware. If you’re a grower with gear we haven’t touched, or a brand who wants to ship better software, the door is open. Pull up a chair on Discord and let’s build this thing together.

1
Solo developer, no team
100%
Tested in real grow rooms
0
Investors, VCs, ad networks

Build This With Us

We’re just getting started. Join Discord to help us test, share what you grow with, and shape what ships next.

Discord Community

Discord is the heart of GrowVPD Pro — the only place we hang out, and the only place we listen. Every message gets read by the actual developer, usually within hours. Help us test new integrations, walk us through your setup, share what your grow looks like this week, or push rough edges straight into the next release. There’s no support ticket queue here — just a shared room of growers and one developer trying to make the app better, every release.

Join Discord
🧪

Test With Us

Our test rig is still growing. If you own a sensor, controller, light or anything we haven’t touched yet, jump on Discord and we’ll walk through it together — your real grow is the best test bench.

🤝

Looking for Hardware

We’re actively sourcing gear to test and tune every integration end-to-end. If you’re a brand, distributor or grower who can loan or send us hardware (even older gear), we’d love to hear from you.

🤗

Brand Partnerships

We’re big fans of Mars Hydro, AC Infinity, Spider Farmer, Vivosun, Bluelab and SANlight. If any of these teams want to collaborate on official integrations, our door is wide open.

💡

Shape What Ships

We’re early enough that feedback still bends the roadmap. Vote on features, report rough edges, share what’s missing — the next release probably contains something you asked for.

Grow With Us From
Day One.

Download GrowVPD Pro for free — no sign-up, no account. Jump on Discord and help us shape the next release.

GrowVPD Pro — Free VPD & Grow App