Privacy Policy
Last updated: 2026-07-17
What we collect
InkFlow AI stores your account email, display name, credit balance, saved signature stroke data, template unlocks, and document signing audit records (file name and timestamp — not document contents).
Our native iOS app collects the same account and usage data as the website. Photo library access is used only when you choose an image for signature refinement; we do not scan your library in the background.
How we use data
Data is used to provide signature generation, cloud library storage, credit billing, and PDF signing (SES). On the website, payments are processed by Stripe. In the iOS app, digital goods are sold only through Apple In-App Purchase; we receive transaction identifiers to grant credits and subscriptions.
Optional AI-assisted features may send tuning prompts or image analysis data to configured providers (e.g. DeepSeek or OpenAI) when enabled on the server.
Retention & deletion
You may delete your account and all associated data from your Account page on the web, or from the Account tab in the iOS app (Delete account). PDF files uploaded for signing are processed in memory and are not stored on our servers after the request completes.
Contact
Questions: dengfenglai1210@gmail.com