FlareCast

See the pattern in your flares

Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.

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. — 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/

  • This app hasn’t received enough ratings or reviews to display an overview.

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.

The developer, Diana Goldstein, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Location

Privacy practices may vary, for example, based on the features you use or your age. Learn More

The developer has not yet indicated which accessibility features this app supports. Learn More

Seller
  • Diana Goldstein
Size
  • 8.5 MB
Category
  • Health & Fitness
Compatibility
Requires iOS 17.0 or later.
  • iPhone
    Requires iOS 17.0 or later.
  • Mac
    Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
  • Apple Watch
    Requires watchOS 26.5 or later.
Languages
  • English
Age Rating
4+
In-App Purchases
Yes
  • Premium Monthly $4.99
  • Premium Yearly $49.99
Copyright
  • © 2026 Diana Goldstein