Some days hit harder. Now you'll know why.
Your body's daily heads-up. It reads the conditions around you and tells you, in one plain sentence, how they may affect your migraines, joints, hay fever, asthma, skin and more — and the simple thing to do about it.
Other weather apps tell you the temperature.
They never tell you it's a migraine day.
A pressure drop triggers a migraine. Cold damp air flares arthritis. A pollen spike wrecks an asthmatic's morning. A heat wave endangers kids and elderly. The conditions already hold the warning — most apps just never translate it.
Three steps. One clear message a day.
No dashboards to read, no numbers to decode. You set it up once, and Cas — your BodyCast companion — does the watching.
Pick what affects you
Choose your conditions — migraines, joint pain, hay fever, asthma, family safety. Pick several; it's your body.
We read the day
Free, accurate Open-Meteo / ECMWF data — pressure, temperature, humidity, UV, rain, plus air quality: PM2.5, ozone and pollen.
You get one clear message
A plain-language heads-up written so anyone can follow it — with a specific action and a risk level for the next 7 days.
Tell us what affects you. We'll watch for it.
Pick one or several. Your daily message is tuned to exactly the conditions you live with.
Migraines
Pressure-triggered headaches — flagged before the drop hits.
Joint pain
Arthritis & chronic pain stirred by cold, damp and pressure.
Hay fever
Pollen spikes and dirty air, called out before they land.
Asthma
Poor air, cold snaps and thunderstorms that tighten the chest.
Eczema
Dry, cold, windy days that leave skin itchy and raw.
Raynaud's
Cold that sets off fingers and toes — before you head out.
Dry eye
Dry, windy air that leaves your eyes gritty and sore.
Family safety
Heat & strong sun risk for kids and older adults.
…and more — MS heat-sensitivity, COPD & breathing, heart & blood pressure, diabetes, sleep, mood & daylight, sun & skin, older-adult safety, and a simple daily heads-up. 18 conditions in all.
Built to look out for you — not to overwhelm you.
7-day risk outlook
Every day color-coded Low → Moderate → High → Severe, so you can plan the week around the days that hurt.
Plain-language message
No jargon — written so a child could follow it. “Have your allergy relief ready and shut the windows,” not “antihistamine prophylaxis.”
Get warned ahead of time
Optional local notifications the morning of — and the evening before — a risky day, so you have time to prepare.
Optional weather details
Want the raw numbers too? Flip on temperature, humidity and conditions — Sunny, Rainy — right alongside your alert.
Private by design
No account, no sign-up. Everything is saved on your device, and notifications are scheduled right on your phone.
Free, open data. No account. Your data stays on your phone.
BodyCast, in plain terms
What is BodyCast?
BodyCast is a free iOS app that connects the conditions around you to how your body feels. Instead of just showing the temperature, it reads pressure, humidity, UV, pollen and air quality, then tells you — in one plain sentence — how the day may affect your migraines, joints, hay fever, asthma, skin and more, and the simple thing to do about it.
How does BodyCast know it's going to be a migraine day?
BodyCast watches barometric pressure using free ECMWF / Open-Meteo forecasts. When it detects a sharp pressure drop — a well-known migraine trigger — it warns you the evening before and the morning of, with a clear action like pre-medicating early. You set your sensitivity so the alerts match your body.
What conditions can BodyCast track?
BodyCast covers 18 conditions — migraines (barometric pressure), joint pain and arthritis (cold, damp and pressure), hay fever and asthma (pollen, PM2.5, ozone, cold air and storms), eczema, Raynaud's, dry eye, MS heat-sensitivity, COPD, heart, diabetes, sleep, mood and daylight, sun and skin, and heat/cold safety for kids and older adults. Track several at once and get one combined daily message.
Is BodyCast medical advice?
No. BodyCast is an awareness tool for how the conditions around you may affect your body — not medical advice or a diagnosis. It helps you anticipate and prepare for days that may affect you. Always follow your doctor's guidance for treating any health condition.
Is my data private?
Yes. BodyCast needs no account and no sign-up. Your conditions, location and preferences stay on your device, and notifications are scheduled locally on your phone. Your location is only used to fetch your local forecast — it is never sold or shared.
How much does BodyCast cost?
BodyCast is free. It uses free, open weather and air-quality data (ECMWF via Open-Meteo), so there's no subscription to get your daily heads-up. It is coming soon on iOS, with Android to follow.
See the days that hurt you, before they arrive.
Join the waitlist and be first to get BodyCast when it lands. Coming soon to iOS, with Android close behind.