Privacy Policy
Last updated: 3 November 2025
We comply with UK GDPR and EU GDPR.
1) Who we are
- Controller: Sienda Ltd
Third Floor, 207 Regent Street, W1B 3HH London, United Kingdom - Contact: privacy@sienda.co.uk
- UK ICO registration number: ZA303820
2) What data we process
2.1 Free tier (no sign-up)
- Local only: Goals, chats, and usage counters are stored locally in your browser. We do not receive or store this content server-side.
- Technical logs (server): IP address, user-agent, URL, timestamp, and basic error logs — used for security and diagnostics.
2.2 Premium accounts
- Account & subscription: Email, subscription status/plan, and limited profile attributes needed to operate your account.
- Product data: Goal/session metadata, dashboard metrics, and notification preferences.
- Operational events: Minimal events (e.g., “checkout created”, “subscription activated”, “login”).
- Payments: Processed by our provider / Merchant-of-Record; we receive no full card details — only references (e.g., customer/subscription IDs) and status.
3) Purposes & legal bases (UK/EU GDPR)
- Provide the Service / authentication / subscription management
→ Contract (Art. 6(1)(b)); Legitimate interests (Art. 6(1)(f)) for security/anti-abuse - Billing, tax, fraud prevention
→ Legal obligation (Art. 6(1)(c)); Legitimate interests (Art. 6(1)(f)) - Notifications & product emails
→ Contract / Legitimate interests; you can manage preferences or opt out of non-essential messages - Marketing emails (if any)
→ Consent (Art. 6(1)(a)) - Analytics (if enabled)
→ Consent for non-essential cookies/SDKs; we keep them off by default in the UK/EEA until you opt in
4) Cookies & local storage
- Essential cookies (e.g., auth session) — used for Premium sign-in; strictly necessary
- Non-essential cookies/SDKs (analytics/experiments) — used only with your consent in the UK/EEA
- Local storage — used for Free-tier goals/chats and usage counters; remains on your device
5) Retention
- Free tier content: Remains in your browser until you delete it (we don’t have it)
- Premium account data: Kept while your account is active and for up to 24 months after closure (or as required by law)
- Billing/tax records: Retained for the legally required period (typically 6–10 years, jurisdiction-dependent)
- Operational logs: Typically 12–24 months, unless needed longer for security/compliance
6) Sharing & recipients
We share data with trusted providers only to run the Service:
- Hosting
- Email and notification services
- Analytics (if consented)
- Payment / Merchant-of-Record providers that handle tax and invoicing
We require appropriate data protection terms (UK IDTA / EU SCCs where relevant).
7) International transfers
We may transfer data outside the UK/EEA. When we do, we rely on:
- UK adequacy regulations / EU adequacy decisions (where available); and/or
- UK IDTA and/or EU Standard Contractual Clauses (SCCs) with appropriate supplementary measures
8) Your rights
Under UK GDPR / EU GDPR, you can request:
- Access
- Rectification
- Erasure
- Restriction
- Portability
- Objection to processing (including for direct marketing)
- Withdrawal of consent at any time (where processing is based on consent)
How to exercise your rights:
📧 Email us at privacy@sienda.co.uk
Complaints:
- UK users may complain to the ICO
- EEA users may complain to their national supervisory authority
9) Children
The Service is intended for users 18+. If you believe a child has provided personal data, contact us to remove it.
10) Security
We use technical and organisational measures appropriate to the risk:
- Encryption in transit
- Access controls
- Backups
- Monitoring
⚠️ No system is perfectly secure because perfection is not of this world.
11) Changes to this policy
We may update this policy. Material changes will be notified in-app or by email.