Effective date: [PLACEHOLDER]
Cookies are small files stored on your device. Similar technologies (like your browser's local storage) work the same way and are covered here too. Trellis does not use advertising, marketing or cross-site tracking cookies, and does not use analytics cookies. Because every item below is strictly necessary or remembers a choice you made, we do not show a cookie banner [RECOMMENDED - confirm]. If we ever add analytics or marketing cookies we will ask for your consent first.
Strictly necessary
| Name | Set by | Purpose | Lasts |
|---|---|---|---|
| `sb-<project>-auth-token` (may be split into `.0`, `.1`) | Supabase (first-party, our domain) | Keeps you signed in | Session cookie, refreshed while you stay signed in; we set no custom lifetime |
| `trellis-role` | Trellis | Remembers which portal (family, tutor, student) this browser signs in to. No personal data | 1 year |
| `trellis-child-mode` | Trellis | Locks the family account to one AI Teacher session while a child is using it | 12 hours, or until a parent leaves child mode / signs out |
| `trellis-child-mode-tries` | Trellis | Counts wrong password attempts to leave child mode, to stop guessing | 15 minutes |
| `trellis-bank-checks` | Trellis | Limits how many bank-account lookups a tutor can make (fraud prevention) | 1 hour |
| `trellis-preview` | Trellis | Lets invited visitors see the site before launch | 30 days (pre-launch only) |
Preferences
| Name | Purpose | Lasts |
|---|---|---|
| `trellis-tz` | Your device's time zone name, so lesson times match your clock | 1 year |
| `trellis-tz-kept` | That you chose to keep your saved time zone when your device showed a different one | 1 year |
| local storage `trellis-ai-voice-out` | Whether you turned on spoken AI Teacher replies | Until you clear it |
| local storage (portal favourites) | Your pinned shortcuts in the portal | Until you clear it |
Error monitoring
We use Sentry to detect crashes. It is set not to send personal data (`sendDefaultPii: false`), traces 10% of page loads for performance, has Session Replay turned off, and sets no advertising cookies.
Third parties
Payment pages (Paystack, and later Stripe/PayPal) and lesson video (Daily) may set their own strictly necessary cookies when you use them. See their policies.
Controlling cookies
You can delete or block cookies in your browser settings. If you block strictly necessary cookies you won't be able to sign in.
Questions: info@trellistutors.com. See also our Privacy Policy /privacy.