GlucoTail Privacy Policy
Last updated: October 15, 2026. GlucoTail (“the app”) is made by Elayse LLC (“we”). This policy explains what the app stores, what leaves your phone and why.
The short version
- Your records stay on your phone. No account is needed and the app works fully offline.
- Nothing is uploaded unless you turn on Family sharing or buy a subscription.
- No ads, no advertising or tracking SDKs, and we never sell data.
- Pet photos never leave your phone.
- You can export or delete everything at any time.
What stays on your phone
Everything you log — your pets’ profiles, blood glucose readings, insulin doses, meals, weight, ketones, medications, lab results, curve days, supplies, reminders, notes and photos — is stored in a database on your device. Backups and exports (CSV, PDF, backup files) are created on your phone and only go where you choose to send them.
Family sharing (optional)
If you turn on Family sharing to track a pet together:
- You sign in with your email address. We send a one-time code; there is no password.
- Your shared pets and their records are uploaded to our database provider, Supabase, so the phones in your family stay in sync. Access is limited by row-level security: only members of your family can read or change them.
- Your display name and color are shown to your family so everyone can see who logged what.
- Pet photos are not uploaded. Reminders and app settings stay on each phone.
- You can stop sharing on a phone at any time, or delete your account (see Delete your account).
Subscriptions (optional)
Pro subscriptions are sold by Apple (App Store) or Google (Google Play); we never see your payment details. Our purchase provider, RevenueCat, receives an anonymous app user ID and your purchase and subscription status so the app knows whether Pro is active. It does not receive your pets’ records.
What we collect
| Data | When | Who receives it | Why |
|---|---|---|---|
| Email address | Family sharing sign-in | Supabase (auth) | Sign-in codes, your account |
| Pet records and notes | Family sharing only | Supabase, visible to your family only | Syncing between family phones |
| Display name, color | Family sharing only | Supabase, visible to your family only | Showing who logged a record |
| Anonymous app user ID, subscription status | When you buy or restore Pro | RevenueCat, Apple or Google | Unlocking Pro |
We do not collect location, contacts, advertising identifiers, browsing data or crash reports. An option for anonymous usage counts exists in settings, is off by default, and is not active in this version; if it is ever turned on, it will never include glucose values, notes, photos or personal details.
How long we keep data
- On your phone: until you delete it (Export & backup → Delete all data) or uninstall the app.
- On our server: while your account is in use. Deleting your account removes your sign-in and your membership right away; a family nobody is left in is deleted with its shared records. Backups are overwritten on a rolling basis.
- Purchase records are kept by Apple, Google and RevenueCat under their own policies and as tax law requires.
Security
Data sent to Supabase and RevenueCat travels over encrypted connections (HTTPS). Server access is restricted per family by row-level security, and records are never shared outside your family.
Your rights
You can export all your data from the app at any time, correct it in the app, and delete it from the app. You can also ask us for a copy or deletion of the data we hold for your account by emailing support@elayseapps.com. Depending on where you live (for example California or the EU), you may have additional rights; we honor them for all users.
Children
GlucoTail is meant for adults caring for pets and is not directed at children under 13. We do not knowingly collect data from children.
Not a medical device
GlucoTail is a logbook. It does not diagnose, never recommends or calculates insulin doses and does not give veterinary advice. Always follow your veterinarian’s instructions.
Changes
If we change this policy, we will update the date above and, for important changes, tell you in the app.
Contact: Elayse LLC · support@elayseapps.com