The short version: Solara computes your circadian schedule on your device. Your location is used for solar math and never stored on our servers. Your health data (sleep, HRV, heart rate) stays on your device. We never sell your data, and we never use your health data for advertising or marketing.
Solara ("the App," "we," "us") is a circadian rhythm application that calculates personalized daily schedules from your local sunrise, solar noon, and sunset times. This policy explains what information the App handles, why, and the choices you have. It applies to the Solara mobile app and the Solara website.
With your permission, Solara uses your device's location to calculate sunrise, solar noon, sunset, UV levels, and your vitamin D window for your exact coordinates. All solar calculations happen on your device. Your location is not transmitted to our servers, stored by us, or shared with anyone. You can deny or revoke location access at any time in iOS Settings; the App will fall back to a default location.
If you choose to connect Apple Health, Solara reads your sleep analysis, heart rate variability (HRV), and resting heart rate to provide circadian rhythm insights, and writes mindful session data for sunlight sessions you track. HealthKit data:
Solara's Lux Meter uses your camera to estimate ambient light levels. The camera feed is analyzed in real time on your device to produce a light reading (in lux). No photos or videos are captured, recorded, stored, or transmitted.
Sleep logs, session history, vitamin D tracking, skin type, wake time, and goals you enter are stored locally on your device. Deleting the App deletes this data.
If you connect a WHOOP account, Solara imports your sleep and HRV data through WHOOP's official API so you don't have to enter it manually. Authorization uses OAuth — we never see your WHOOP password. Imported data is stored on your device alongside your other health data. You can disconnect WHOOP at any time in the App.
When you create an account (with Sign in with Apple or email), we store your name, email address, and sign-in method to maintain your account. With Sign in with Apple you may use Hide My Email, in which case we only receive the relay address Apple generates. We do not store passwords.
Solara Pro subscriptions are processed by Apple and managed through RevenueCat, our subscription infrastructure provider. We receive subscription status (e.g., active, trial, expired) — we never see or store your payment details. See RevenueCat's privacy policy.
We use PostHog to understand how the App is used — for example, which screens are viewed and which features are used — so we can improve Solara. Analytics events never include your health data, location, or camera readings. Analytics are tied to a random identifier, not your name or email.
If you join the waitlist on our website, we store your email address to notify you about Solara's availability. You can request removal at any time using the contact below.
Health data, sleep logs, and preferences live on your device and are removed when you delete the App. Account records are kept while your account is active. You can delete your account and associated data directly in the App (Settings → Delete Account), which removes your local data and instructs our server to delete your account record. You can also request deletion by email.
Account credentials on your device are stored using iOS Secure Store (Keychain). Communication with our servers uses HTTPS. No method of transmission or storage is 100% secure, but we design Solara so that your most sensitive data — health and location — never leaves your device in the first place.
Depending on where you live (including under GDPR and CCPA), you may have rights to access, correct, delete, or port your personal data, and to object to or restrict certain processing. Because almost all Solara data lives on your device, most of these rights can be exercised directly in the App. For anything else, contact us below. We do not discriminate against you for exercising your rights.
Solara is not directed at children under 13, and we do not knowingly collect personal information from children under 13. If you believe a child under 13 has provided us personal data, contact us and we will delete it.
Solara relies on these processors to operate: Apple (sign-in, payments, HealthKit), RevenueCat (subscription management), PostHog (analytics), WHOOP (optional data import), and Google (website waitlist storage). Each processes data only as needed to provide its service.
We may update this policy as the App evolves. Material changes will be reflected by the "Last updated" date above, and significant changes will be communicated in the App.
If you have any questions, concerns, or requests regarding this Privacy Policy or Solara's data practices, please contact:
Solara — Privacy
Email: gmfrom.drmawz@gmail.com