What DoseDrill stores
DoseDrill is a client-side web app. Your practice history, accuracy stats, and preferences are saved in your browser's local storage on your device. They are never uploaded to us, and we have no account system and no server-side database of your activity. Clearing your browser storage erases this data.
Analytics
If analytics are enabled on the production site, we use Cloudflare Web Analytics, which is privacy-first: it is cookieless, does not fingerprint visitors, and reports only aggregate, anonymous traffic (page views, referrers, country-level location). It cannot see your practice activity or identify you.
Payments
DoseDrill Premium is sold through RevenueCat and Stripe. When you subscribe, your email and payment details are handled entirely by those providers — we never see or store your card information. To recognise your Premium access, an anonymous purchase identifier is stored in this browser (it also serves as your access code for restoring Premium on another device). It is not linked to your name or your practice history.
No sale of data
We do not sell, rent, or share your personal information. There is no advertising and no third-party tracking beyond the aggregate analytics described above.
Contact
Questions about privacy? Reach out via the support address published with your purchase receipt.