
FlareCast
See the pattern in your flares
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Free
In-App Purchases
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About
If your fitness tracker thinks you're broken, you're using the wrong app.
FlareCast was built by someone living with Sjögren's syndrome, for people with chronic illness. Instead of a step goal that shames you on bad days, FlareCast gives you one honest number: your capacity for today. It's calculated from how you slept, your symptoms, fever, stress, hydration, and check-ins. A 30% day is a 30% day — the app tells you that, and tells you why.
Behind that number, FlareCast quietly tracks what your doctor wants to see at your next appointment:
• Symptom load over time
• Fever trends, with a flag at 100.4°F
• Medication adherence
• Sleep, resting heart rate, and HRV from your Apple Watch
• Hydration against your goal
Tap one button and FlareCast generates a clean PDF you can email your specialist before your visit.
Gentle by design. Log from your wrist by answering a reminder, no need to open the app. Soft colors instead of alarm-red. Miss a few days? It welcomes you back instead of guilt-tripping you.
Private by default. Everything stays on your iPhone. No account. No cloud. No tracking. No data sold...ever. FlareCast reads from Apple Health; it never writes to it and never sends your data anywhere.
What you can track:
• Wellbeing, symptoms, stress, body temperature, hydration
• Medications with day-of-week scheduling and reminders
• Blood pressure and glucose
• Free-form notes with photos
• Period start/end with a calendar and predictions
Built for autoimmune conditions like Sjögren's, lupus, and RA, useful for anyone living in a body that needs listening to.
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FlareCast is not a medical device. Any score, prediction, or insight is for personal pattern-tracking only. Don't use it to diagnose, to decide whether to take or skip medication, or in place of your doctor.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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What's New in FlareCast
1.5.1
August 27, 2026
Housekeeping this time. A few small fixes under the hood, and nothing you need to do differently. One new thing you might notice eventually: FlareCast may ask what you think of it. If it does, it will pick a day when you have the room for it, and it will not ask again for a long while.
MoreSubscription plans
Premium Monthly
Deeper trends, pattern insights & doctor PDF.
$4.991 Month


