Zasder
Zasder
Your weather station, your data, your app.
A self-hosted dashboard for your own backyard station. Pull from AmbientWeather, Davis WeatherLink, or direct 433/915 MHz radio capture — all into a backend you own. Built after MyAcurite was shut down, so your data never depends on a vendor's whims again.
Zasder Weather is the app half of an open-source, self-hosted stack. You run a small backend; the app reads from it. No middleman cloud, no subscription.
One command deploys it to Fly.io (~$2/month, works anywhere with internet), or run it locally with Docker. The setup planner gives you the exact steps.
Paste your backend URL and access token into the app's settings. That's it — the token is generated for you during setup.
Your readings flow into a database you control. Add stations, mix sources, keep history as long as you like. Nothing is sent to us.
AmbientWeather cloud, Davis WeatherLink cloud, and direct 433/915 MHz RF capture via a low-cost LilyGO ESP32 board. Run any one, or all together.
Skip the vendor cloud entirely. A LilyGO board decodes your AcuRite Atlas or Fine Offset / Ambient sensors off the air in ~16 seconds.
A 16-sector polar wind rose plus history charts for every field, auto-bucketed across 1 day to 30 days.
Multiple receivers for one sensor? The backend merges the freshest non-null value per field, so a single station always shows a full grid.
Daily, weekly, monthly, and yearly rollups computed in your own timezone — so "today's rain" rolls over at your midnight, not UTC.
The app is free and nothing is paywalled. If it saves you from a dead vendor app, an optional tip jar adds a cosmetic supporter badge — that's all.
The backend is open source. There's no account to create with us, no telemetry, and no lock-in — if you ever stop using the app, your data and your server are still entirely yours.
Stand up the backend in minutes, then point the app at it. The planner walks you through exactly what your hardware needs.
Zasder Weather talks only to the backend you deploy. We don't host it, we don't proxy it, and we collect nothing. Your weather lives on your server.
