Terms of Service
1. Read this first — postdrome is not medical advice
postdrome is a self-tracking tool, not a medical device. We are not a healthcare provider. Nothing in the app or this website constitutes medical advice, diagnosis, or treatment. The information postdrome shows you is generated from your own logged data and on-device statistical analysis. It is not reviewed by a clinician. It is not a replacement for professional medical care. If you have a medical concern, talk to a licensed physician.
If you are experiencing a thunderclap headache (the worst headache of your life), a sudden new neurological symptom (vision loss, weakness, slurred speech), confusion, fever with neck stiffness, or any symptom that feels significantly different from your typical migraine pattern, seek emergency care immediately. These can indicate stroke, hemorrhage, infection, or other life-threatening conditions that postdrome cannot detect. Call 911 or your local emergency number.
2. Acceptance
By installing and using postdrome, you agree to these terms. If you don't agree, please don't use the app.
3. Who we are
postdrome is a product of SailQuery LLC, a Maryland limited liability company.
4. Your account
postdrome can be used without an account for the first seven days. After that, or upon first export / import / Pro purchase, the app prompts you to sign in with Apple. You're responsible for keeping your Apple ID secure. We don't store any password.
5. Pro features — one-time, lifetime
postdrome Pro is a one-time, non-consumable in-app purchase of $14.99 (USD; pricing in other regions follows Apple's tier mapping). Pro unlocks specific features (Apple Watch app, cross-device sync, unlimited history, and formal export templates for insurance prior authorization, disability claims, and detailed clinical reports) that are listed in the app at purchase time.
Pro is honored for the lifetime of the postdrome app (we anticipate this means at minimum five years; in practice, however long we maintain the product). It is tied to your Apple ID, so you can install postdrome on any of your Apple devices and the entitlement carries over via Apple's "Family Sharing"-equivalent mechanisms where applicable.
postdrome will never charge a subscription. If we change pricing for new buyers, existing Pro purchasers are unaffected. Refunds are handled by Apple per their standard App Store policy.
6. Your data
Your symptom logs, medications, voice memos, and personal notes are yours. We don't store them on our servers; they live on your device and (if you opt in) in your own iCloud via Apple's CloudKit. See our Privacy Policy for the full list.
You can export all your data as PDF, CSV, or JSON at any time. You can delete it any time by deleting the app and clearing the iCloud backup from your Apple ID settings.
7. Tamper-evident reports
The "Doctor's report" PDF that postdrome generates includes a cryptographic hash. The hash lets a third party (a disability adjuster, an insurance reviewer, your physician's office) verify on this website that the document is bit-for-bit what postdrome originally produced. The hash does not indicate medical accuracy or completeness; it only indicates that the document was generated by the postdrome app and has not been altered. We provide the verification tool at postdrome.app/verify. You agree not to forge or misrepresent these reports.
8. Acceptable use
Don't use postdrome to harm yourself or others. Don't try to break the app, reverse-engineer it, or use it for any unlawful purpose. Don't try to inject false data and pass it off as a postdrome-generated record (the tamper-evident hash exists to prevent this and we may pursue people who do).
9. Disclaimers
postdrome is provided "AS IS" and "AS AVAILABLE." SailQuery LLC disclaims all warranties, express or implied, including merchantability, fitness for a particular purpose, and non-infringement.
We make no guarantee that postdrome will be uninterrupted, error-free, or that any specific feature will continue to work the way it works today. We use commercially reasonable efforts to maintain the app, but software has bugs, Apple's APIs change, and devices fail.
10. Limitation of liability
To the maximum extent permitted by law, in no event shall SailQuery LLC be liable for any indirect, incidental, consequential, special, or punitive damages, or any loss of profits or revenue, arising out of your use of postdrome. Our total cumulative liability arising out of or related to these terms shall not exceed the amount you paid us for postdrome (which for most users is zero, and at most $14.99).
Some jurisdictions don't allow these limitations; in those places, our liability is limited to the maximum extent permitted.
11. Indemnification
You agree to indemnify and hold harmless SailQuery LLC from any claim arising out of your misuse of postdrome (including misrepresenting tamper-evident reports, using the app for unlawful purposes, or violating someone else's rights).
12. Governing law
These terms are governed by the laws of the State of Maryland, USA, without regard to conflict-of-laws principles. Disputes shall be resolved in state or federal courts located in Maryland.
13. Changes
We may update these terms occasionally. The "Last updated" date will reflect the change. Continued use of postdrome after a change means you accept the new terms. We will not retroactively reduce features that you've already paid for.
14. Contact
SailQuery LLC, Maryland, USA.
Questions: support@sailquery.com.