Everything FairGrow does, and what is coming
FairGrow puts your sensors, the weather, satellite images and the plant protection registers side by side and turns them into advice per field.
and calculates
More data, measured results, nothing hidden
More sources, side by side
A weather app picks one model. We put nine side by side, with your own sensors, Sentinel-2 and six national product registers. Where they disagree, you see that too.
Measured, not promised
We keep every forecast and score it afterwards against what really happened. You see the outcome, even when it disappoints. The same goes for reading lab reports.
Everything in the open
Every damage threshold with a source citation. Every part of this page with its status. Your data on our own servers, not in an American cloud.
Sensors built to measure, made for the field
Our own ESP-NOW sensors need no wifi and no power socket. They run on a battery or a solar panel and pass their readings to each other, up to a gateway that is online. On our own setup they work very well.
- Built to measure: soil moisture and soil temperature at several depths, light, leaf wetness, and switching a pump or valve. In an IP65 housing.
- When the leaf gets wet, the sensor transmits immediately. Exactly the moment a disease model needs.
- Zigbee sensors are usable today. Thousands of devices from other brands are recognised, and for every sensor we store a fingerprint, so it stays connected.
In testing The ESP-NOW sensors are waiting for their CE marking. How they work
From the field to your dashboard
How often was the forecast wrong? We show you.
A weather app gives you a forecast and forgets it. FairGrow keeps it and puts it next to what actually happened, at your location, a year back.
- Per day ahead. You see how fast the error grows, and so up to which day you can plan on it.
- Per source. Which weather source does best at your location.
- The middle value of all sources, with the spread alongside. For rain we count: “2 of the 3 say dry”, not a percentage nobody can check.
- 14 days ahead from three ensemble models, which we check in the same way.
Error per day ahead
Where the sources disagree
Every spray application checked as you type
You record a spray application and FairGrow immediately checks it against the approval register of your country: crop, dose, interval and frequency. If something is wrong, you see it before you save.
- EPPO codes for crop and pest, so it works across countries and languages.
- Compare across the border. If a product is not approved here, you see where it is.
- Behind every product, the substance, with a structural drawing and the label in your own language.
- 1,058 damage thresholds per pest and crop, each with a checked source citation. In the crop protection app. In testing
From crop to substance
SOLTUPHYTIN
Your field seen from above every few days
Sentinel-2 at 10 metres, roughly every five days. FairGrow removes the clouds, calculates growth and drought, and puts it next to what your sensors measure in the ground.
- Growth index (NDVI) since 2017, so you can put this season next to earlier years.
- A drought layer and a cloud mask, so a cloud does not look like a poor crop.
- What grew there in previous years, from Copernicus land monitoring.
- Elevation, slope and aspect per field, from the Copernicus elevation model.
True colour and growth index
Your crop data counts at the bank too
A bank or leasing company that invests in a grower almost never sees the field. FairGrow turns satellite, weather and climate history into a report a financier can read. That way what you do on the land becomes an argument at the table.
- Before the financing. Does the plan fit this field? Growth index, water balance and temperature of this season, next to the 30-year climate normal of exactly that location.
- After the financing. A report per field every week, and an alert as soon as something deviates. No installation: just satellite and weather.
- Compared with the neighbours. Is a setback caused by the weather or by the field? The comparison with surrounding fields shows it.
- Personal data stays in the country, processing works with tokens. In development
FairGrow does not assess creditworthiness and does not decide on financing. That stays with the financier. We prepared this report for a central bank and for an agricultural leasing company.
Weekly report for a financier
Your hardware stays yours, even if you ever switch
Many agritech platforms sell their own closed weather station. If you switch, you are left with an expensive paperweight. FairGrow runs on open standards, so your sensors, your coordinator and your automations always come with you.
- Standard Zigbee sensors from hundreds of manufacturers, at €15 to €60 each. If one breaks, you have a new one the same day.
- Your own coordinator. Already running Zigbee2MQTT or ZHA? Then you connect it in four steps. No port needs to be opened in your firewall.
- Your Home Assistant automations come with you. One click per automation. The copy starts disabled and your original stays untouched.
- Open source code for the ESP-NOW sensors, at no extra cost.
What happens when you switch
What FairGrow does now
Everything in these nine blocks works today. What we are still building is further down.
Weather and forecast
- Nine weather sources next to your own sensors, in the compare module
- The middle value with spread, and 14 days ahead
- Every forecast checked afterwards, per source
- Leaf wetness, vapour pressure, evaporation (FAO-56), soil in five layers
- Forty years of weather history from NASA POWER: is this month normal?
Satellite and air
- Sentinel-2 from Copernicus at 10 metres, growth index since 2017
- Drought layer, cloud mask and crop history
- Elevation, slope and aspect per field
- Drone imagery: flight planner and analysis work; we refine them as soon as growers fly with them
- Hourly air quality and pollen from SILAM, seven types
Sensors and devices
- Our own data logger, ESP-NOW sensors and a Zigbee coordinator
- Thousands of Zigbee devices from other makers recognised
- A stable Zigbee connection: for every sensor we store a fingerprint
- Calibration per sensor, so devices measure comparably
- If a sensor stays silent for 30 minutes, the coordinator follows it up by itself
- Pairing with your phone, over-the-air updates and open source code for the ESP-NOW sensors, at no extra cost
Advice and models
- Irrigation advice based on FAO-56, on what your installation really delivers
- 11 disease models and 6 degree-day models for pests
- Nitrogen balance: what the soil supplies itself, against what the crop needs
- A risk calendar and spray window per crop
Crop records
- From field to harvest lot, with version and audit trail
- Every spray application checked against the register of your country
- Export as CSV, XLSX and PDF, ready for the inspector
- Ready for the digital obligation of 2027: all of 2027 must be available digitally in January 2028
- EPPO codes, so it works across countries and languages
Control and collaboration
- Alerts by email, Telegram or in the app, weekly report as PDF
- Team and dealers with their own permissions
- Irrigation control with the workflow builder, with safety checks
- See live what every pump does, and why
- Landscapers pass it on to their clients, dealers earn a monthly share
Products and substances
- 9,020 products from six national registers
- Compare across the border: where a product is approved
- Per substance a structural drawing and the label in your own language
- Biological control agents recognised: parasitic wasp, predatory mite, nematode, bacterium
- Safety in case of fire and poisoning, and residue limits from the EU database
- The EPPO database: which pests threaten a crop
- Is the nitrogen from compost, manure and green manure released in time?
- How many days a shortage lasts, per crop
- A starting calendar per source, at today's soil temperature
- Measure your green manure with a folding ruler and read off the nitrogen
Ask FairGrow and help
- Your idea goes straight to the builders. Use the feedback button in Ask FairGrow, in your own language. The first request that came in this way, registering trees too, is being built now.
- Ask FairGrow answers growing questions in your own language
- An explanation with every screen, one click away
- The Growers Toolbox: in 30 seconds what your crop needs now
What we built, where we stand, where we are going
Started in November 2025. In less than a year from the first page to a platform in 57 languages, open to everyone.
- Nov 2025Start of the platform
- Spring 2026Our own trial garden with the first sensors
- May 2026Dashboard, device view and administration
- June 2026Compare module: satellite, weather and sensors in one view
- July 2026From 21 to 57 languages
- Aug 2026Connect Zigbee from any brand, CE and EAC technical files
- Sep 2026Automations, crop history, elevation model and drought layer
- Sep 20268.403 Zigbee fingerprints and crop records
- Oct 2026Six product registers, weather checked, 14 days ahead
- Lab reports and administrative actions in the register
- Finishing the farm administration: crop plan, costs and margin, adviser access and studies are built, but not finished
- Smarter sensor calibration and the Partner API
- LoRaWAN, and certification: first EAEU, then CE
- Calibrating models on larger fields, with growers
- Tree growing added, and the new modules in 57 languages
- End of 2026ISO 27001 for FairGrow
- End of 2026Tokenisation: personal data becomes a code. Who belongs to that code stays in the grower's country. FairGrow only calculates with the code.
- 2027Growing without synthetic fertiliser for many more crops, trees too
- 2027A third device type, cybersecurity under the CRA
- Mid 2027Our own AI model on our own servers. Ask FairGrow then answers your growing questions without your question going to an external AI provider.
On request, not planned
A GPS/GSM data logger for places without wifi, full NPK fertigation per zone and automatic CO2 reporting. We build them as soon as customers ask for them. Today the FSI readiness module covers the certification route.
Deliberately not
Task maps to John Deere or ISOBUS and machine telemetry. FairGrow focuses on advice from sensors, weather and satellite. See how we compare with the alternatives, or ask us about an integration.
Your data stays with us
FairGrow runs on our own servers in a Dutch data centre. Not in a European region of an American provider, because the CLOUD Act applies there too. We do not sell your data.
One exception: Ask FairGrow runs via an American AI provider for now. The agreements are in data ownership and data use.
In 57 languages, right-to-left too
Platform, website and manual. We translate a new module as soon as it is finished, so the newest screens appear in Dutch and English first.
Four questions, briefly answered
What works already?
The core: weather from nine sources, satellite, sensors with calibration, crop records with product checks, disease and pest models, irrigation advice and the drone module. Automations, lab reports and administrative actions are being expanded now. The farm administration, with crop plan, costs and margin, adviser access and studies, is built but not finished.
Has it been tested with growers?
Not yet. It runs every day on our own setup and has to prove itself on larger fields. We are looking for growers for that now. The Zigbee hardware we build on is proven, the combination that is FairGrow is new.
What does it cost?
At the moment everything is open to you: the paid subscriptions have not started yet. What they will cost, you can read on the pricing page.
Can I connect my own sensors?
Yes, in several ways.
- Zigbee: thousands of devices from other brands are recognised automatically, and for every sensor we store a fingerprint.
- Your own hardware: if you have an ESP32 board or your own measuring setup, we can supply our own ESP-NOW firmware for it by arrangement, so it takes part in FairGrow as a sensor.
- LoRaWAN: for sensors far from wifi and without a gateway nearby. In development
- Open sensor firmware: we invest in better firmware every week, and the source code of our ESP-NOW sensors comes with it, at no extra cost. No lock-in: your sensors are standard and your data stays yours. If you like to build things yourself, you can make your own sensor node with it.