VELUX ACTIVE with NETATMO vs GrowLegend
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
VELUX ACTIVE with NETATMO
Automate your electric roof windows, blinds, and shutters using smart sensors for temperature, humidity, and air quality. Monitor and control your home's indoor climate remotely and receive alerts. Features include an air quality dashboard, remote control via app or voice, and a convenient departure remote.
- Automated roof window control
- Sensor-based climate monitoring
- Remote and voice control
- Indoor climate dashboard
- Departure scene automation
- Easy installation
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VELUX ACTIVE with NETATMO is the first smart home automated control of electric roof windows, blinds and shutters. ROOF WINDOWS CONTROLLED BY SENSOR TECHNOLOGY Smart sensors measure the temperature, humidity and air quality to automatically open or close your roof windows, blinds and shutters. The solution ensures healthier indoor climate while saving energy. INDOOR CLIMATE CONTROL You can remotely monitor and control your home’s indoor climate with key indexes for temperature, humidity and air quality, and receive alerts on your Smartphone when automatic regulation is on-going. AIR QUALITY DASHBOARD Track your indoor climate with individual temperature, humidity and Co2 dashboards. Click on the parameter, to see details about your indoor climate right now, within the last 24 hours, 7 days and 30 days. REMOTE AND VOICE CONTROL Whenever you want, wherever you are, you can use the App, Apple HomeKit, Siri voice assistant or dedicated smart remotes to open and close your electric VELUX INTEGRA roof windows, blinds and shutters. AN EASY EXIT Placed at the front door, the wireless departure remote adds a layer of convenience to leaving the house. Pressing the remote activates a preset departure sequence, closing all the smart roof windows throughout your home and activating the secured ventilation mode. The same departure scene exists in the App. EASY INSTALLATION This solution comes pre-programmed and ready to operate, autonomously and dynamically. It is compatible with motorized VELUX INTEGRA roof windows including ones that have already been installed. Even a manual roof window can be compatible by adding a retrofit motor.
GrowLegend
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GrowLegend is the ultimate cannabis cultivation companion for growers of all levels — from germinating your first seed to breeding your own strains. GROW YOUR WAY Soil, Coco Coir, DWC, or Living Soil — pick your medium per plant and GrowLegend adapts around it. DWC gets reservoir health logging (water temp, airstone, dissolved oxygen, EC). Coco Coir gets runoff EC tracking with a flush warning. Living Soil gets its own organic feeding path — top-dress grams and microbe tea, not liquid nutrients. Set Indoor, Outdoor, or Greenhouse per plant too — outdoor/greenhouse get Estimated DLI from your local weather (no PAR meter needed), with In the Ground to skip pot size. Change medium or location anytime. TALK TO YOUR GROW Works with Siri — log a feed, watering, or humidity reading hands-free, search strains, add to My Grow, dictate a journal entry, or flip to flowering, all by voice, confirmed before it saves. On-device only — nothing leaves your phone. STRAIN LIBRARY 2,523 cannabis strains, verified for real genetics, flowering times, THC/CBD, and growth characteristics — not scraped or guessed. Add your own custom strains with your own photo, and tap through to a trusted breeder where available. MY GROW Track up to 3 plants free, with a stage progress bar (Seed, Seedling, Veg, Flower) and editable veg length. Nickname a plant and set pot/reservoir size anytime. Log watering, feeding, humidity, and PAR/DLI readings with stage-aware targets. Capture photos, keep a dated Grow Journal, with one-tap Topping and Defoliation logging from your plant card. Correct starting method, medium, or stage anytime; export to CSV or archive without losing history. HARVEST TO CELLAR Move a finished plant into Dry Room tracking, then jar and track Curing with a burp log and humidity readings. Rate aroma, flavor, potency, and bag appeal, then share a card. THE SMOKED LIST Track every strain you've actually tried, however you found it — rate it, add a photo, note the source (your grow, a friend's, gifted, festival) — so you can always find your way back. FEEDING CALCULATOR Precise nutrient recommendations (Base A & B = core growth nutrients, Booster = a P/K bloom additive) with EC/pH targets tailored to stage and medium — Living Soil gets a top-dress/microbe schedule instead. EC/pH optional; universal EC works with any nutrient line. Edit or delete any entry; every feed logs a watering too. GROW TO DO Smart task reminders based on your plants' needs, with optional daily reminders processed on-device. See today's tasks from your Home Screen widget. BREEDING PROJECTS Plan and track breeding with parent selection, generation tracking (F1 through IBL), and phenotype logging. Archive or export to CSV. GROWER'S ENCYCLOPEDIA Visual guides on grow basics, methods, pests, deficiencies, nutrient lockout, pruning, climate & light (VPD/PAR/DLI), and drying & curing. SETTINGS, YOUR WAY Dark Mode and region-based units (Celsius/Fahrenheit, Litres/Gallons) — change anytime. YOUR DATA, YOUR DEVICE Every plant, photo, log, and breeding record stays on your phone. Nothing is uploaded; no account or cloud sign-in required. PREMIUM FEATURES Upgrade for unlimited plants, unlimited breeding projects, and exclusive growing guides. Free users get full access to the strain library, guides, and up to 3 plants. GrowLegend Premium is an auto-renewable subscription that unlocks unlimited plant tracking, unlimited breeding projects, and exclusive grow guides. Payment is charged to your Apple ID at purchase. The subscription automatically renews unless canceled at least 24 hours before the end of the current period; your account is charged within 24 hours prior to renewal. Manage or cancel anytime in your App Store account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://growlegend.co.za/privacy-policy/
Screenshots
Verdict
The clearest difference is in-app purchases: VELUX ACTIVE with NETATMO at none against GrowLegend's 3. GrowLegend's advantage is update cadence (every 3 days vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. GrowLegend sells 3 in-app purchases, starting at $1.99 per 7 days. VELUX ACTIVE with NETATMO asks for nothing beyond the download.
VELUX ACTIVE with NETATMO ships an update every 2 months, GrowLegend every 3 days. The most recent releases landed on November 1, 2026 and October 25, 2026 respectively.
| Parameter | VELUX ACTIVE with NETATMO | GrowLegend |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (501 ratings) — better | — |
| Positive reviews | 66.9% of reviews | — |
| Number of ratings | 501 — better | — |
| Update frequency | Every 2 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 294 MB | 32 MB |
| Age rating | 4+ | 17+ |
| Developer | VELUX | Douglas Davis |
Bugs and requests
VELUX ACTIVE with NETATMO
Reported bugs
4 issues- App crashes and freezes
- Inability to detect and pair devices
- Automations not working as expected
- Incorrect weather data and sensor readings
Requested features
5 requests- Alexa and Google Home integration
- Ability to set custom open/close schedules
- Improved automation options based on weather, temperature, etc.
- Landscape mode support for iPad
- Battery level indicators for devices
GrowLegend
Not enough reviews yet to summarise bugs or requests.
In-app purchases
VELUX ACTIVE with NETATMO
No in-app purchases
GrowLegend
- Weekly Premium$1.997 Days
- Monthly Premium$6.991 Month
- Annual Premium$49.991 Year
Questions
Is VELUX ACTIVE with NETATMO free?
Is GrowLegend free?
Do VELUX ACTIVE with NETATMO or GrowLegend have ads?
Which is updated more often, VELUX ACTIVE with NETATMO or GrowLegend?
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