Last updated 2 September 2026
Privacy, in plain English
Stackprint is designed to minimise how much financial data leaves your device. Your CSV is parsed in your browser before checkout. We do not ask for exchange passwords, wallet access, seed phrases or API keys.
What we process
When you use Stackprint, we may process your email address, purchase and receipt details, support messages, and the transaction data needed to generate the report you choose to buy.
When transaction data leaves your device
The initial CSV parsing and preview happen locally in your browser. If you choose to continue to secure checkout, the transaction records needed to stage and fulfil your order are sent to Stackprint before you are redirected for payment. They are used so the purchased PDF and CSV can be generated and delivered.
Why we process it
We process data to provide the service you request, take payment, deliver reports, prevent misuse, respond to support requests and meet legal or accounting obligations. We do not sell your personal or transaction data.
Product analytics
Stackprint records coarse journey events such as “CSV parsed”, “report ready” and “checkout started” so we can find where the service is failing users. The event payload does not include filenames, transaction counts or values, wallet details, email addresses or a persistent visitor identifier. We do not use advertising or persistent analytics cookies. A short-lived, strictly necessary HttpOnly cookie links the browser that started checkout to its paid download and expires after one hour.
Service providers
Stackprint uses specialist providers to host the application and data, process payment, and deliver transactional email. Those providers process data only for the relevant service and under their own security and privacy commitments.
Retention and your rights
We keep personal data only for as long as reasonably necessary to provide the service and satisfy legal, security and accounting requirements. UK data-protection law may give you rights to access, correct, erase or restrict use of your personal data.
Contact
For a privacy request or question, email support@stackprint.co.uk. We may need to verify your identity before acting on a request.