Privacy Policy
Last updated 13 November 2026
SPARK is run from the UK. This policy explains what personal information we keep, why, and your rights under UK data protection law (UK GDPR).
Your research data
The numbers you type or paste, your results and your graphs are worked out in your own browser. They are not sent to or stored by us.
What we keep
- Account details: your email address, an encrypted password, your name if given, and when you signed up and last signed in.
- Google sign-in: if you use it, Google shares your name and email address with us.
- Subscription: your plan, trial and subscription status. Card details are collected and held by Stripe, never by us.
- Site visits: anonymous counts of pages visited, country, browser and device type, how fast pages load and errors. This uses no cookies and does not identify you. Lovable collects this data for us; Lovable's privacy policy explains how it handles it.
Why we use it
To provide your account and subscription (our contract with you), to keep the service secure, and to email you about your account, such as confirming sign-up or resetting your password.
Who receives it
Our hosting and sign-in provider (Lovable Cloud), Stripe for payments, and Google if you sign in with Google. We do not sell your information or use advertising trackers.
Storage on your device
Your browser stores a sign-in token so you stay signed in. Stripe may set its own cookies during checkout to prevent fraud.
How long we keep it
For as long as you have an account. When an account is deleted we remove its details, except payment records we must keep by law.
Your rights
You can ask to see, correct, delete or take a copy of your information, or object to how it is used, by emailing hello@spark-stats.com. You can also complain to the Information Commissioner's Office (ico.org.uk).