FlareCast
Diana Goldstein Health & Fitness iPhoneiPadiPod touchApple Watch
FlareCast is a free Health & Fitness app for iPhone and iPad by Diana Goldstein. Requires iOS 17.0. Updated August 27, 2026.
- Price
- Free
- on the App Store
- Size
- 8 MB
- Age 4+
- Updated
- Aug 27
- 2026 · v1.5.1
Screenshots
About FlareCast
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/
What’s new
Version 1.5.1 · Updated 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.
App privacy
The developer, Diana Goldstein, reported these privacy practices to Apple.
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Location: Precise Location
Used for: App Functionality
Alternatives to FlareCast
Looking for apps like FlareCast? Here are 6 similar apps on the App Store. The highest rated is Flara (5.0/5), and all 6 are free to download.
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Pana: Chronic Illness Care
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Flara
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CalmConnect: Anxiety Relief
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Long COVID Pacer
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Gaia Eyes
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Moku Health
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| FlareCast | – | Free | August 27, 2026 | |
| Pana: Chronic Illness Care | 1.0 / 5 (1) | Free | Aug 6, 2026 | Compare |
| Flara | 5.0 / 5 (2) | Free | Oct 22, 2026 | Compare |
| CalmConnect: Anxiety Relief | 5.0 / 5 (4) | Free | Apr 2, 2026 | Compare |
| Long COVID Pacer | 3.0 / 5 (1) | Free | Jun 22, 2026 | Compare |
| Gaia Eyes | – | Free | Jul 23, 2026 | Compare |
| Moku Health | 5.0 / 5 (4) | Free | Oct 8, 2026 | Compare |
Compare FlareCast with the top alternatives: ratings, updates, ASO score and keyword gaps →