Your joints feel the storm when it arrives. Flare warns you hours earlier — time to take meds, plan your day, and show your doctor the proof.
The science
of people with arthritis feel the weather in their joints.
Landmark study
"Cloudy with a Chance of Pain"
npj Digital Medicine, 2019
Cohort
13,000 people
tracked daily for 15 months
Finding
20% higher odds of pain
on damp, low-pressure days
How it works
Pain, stiffness, fatigue. One tap a day.
Pressure, cold, humidity, and wind at your location.
An alert hours ahead, with what to do about it.
Features
Your symptoms, your sleep, your weather. Alone they're noise. Together they're a pattern.

Your flare pattern
your triggers, your thresholds, your timing
Pick your triggers. Flare warns you ahead, even overnight.
Flare lines up your logs, sleep, and weather to find what actually precedes your bad days.
Meds early, heat packs out. Steps timed to the forecast.
Proof for your appointments. A clean PDF connecting your symptoms to the weather record.
Reviews
From early users who know exactly what a pressure drop feels like.
I’ve spent years wondering why some days are suddenly so much worse than others. Seeing my symptoms alongside the weather has helped me notice patterns I never would have caught myself.
I’ve always said I can feel when the weather is about to change and everyone thinks I’m being dramatic 😂 apparently not!!
Most symptom trackers are way too much effort when you’re already exhausted. This is quick enough that I actually stick with it.
The tracking has actually made it easier to explain what’s been happening between appointments because otherwise I genuinely forget.
Usually terrible with apps but this one is actually straightforward. I like checking it in the morning before I decide what I’m doing that day.
Just leaving this because some people expect apps to magically fix everything lol. It doesn’t. But it does help me understand my symptoms and feel more prepared.
I downloaded this expecting another symptom tracker I’d forget about lol but I actually use it every day now. The flare predictions have been weirdly accurate for me.
Jokes aside, I do actually find it helpful. Sometimes I wish the notifications came a little earlier though.
I like knowing when a rough day might be coming so I can plan ahead instead of being completely caught off guard.
Seriously. Arthritis + weather seems so obvious now lol.
I always forget what happened between appointments. Having everything tracked in one place makes it so much easier to explain what’s actually been going on.
She’s always talking about how certain days are worse than others so I feel like she’s going to love this.
It’s become part of my routine. It helps me think about how I want to structure my day.
Sometimes arthritis apps feel like they were designed for my grandma 😭 this one actually feels modern and easy to use.
My husband has been making fun of me for YEARS because I always say “my knees hurt, it’s going to rain” 😂😂 sent him this app. Who’s laughing now.
Nothing can magically stop a flare, obviously, but having a better sense of my patterns has made me feel much more in control.
That is literally my only complaint. Otherwise really nice app.
Usually I download health apps and forget about them after three days. This one feels practical enough to keep coming back to.
I was diagnosed last year and still trying to understand my body. This has been a nice way to start paying attention to what affects me without feeling overwhelmed.
She has osteoarthritis and uses it more than me now lol. We literally compare our flare scores 😭
I assumed it would just give generic weather advice, but after logging consistently, the insights started feeling specific to my symptoms.
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