How to stop Threema training AI on your data
What the policy itself says, plan by plan. Where Threema publishes the steps, they're here in its own words, read from an archived copy of the page that gives them. Where it doesn't, this page says so instead of inventing a menu path.
All accounts
Both public documents are scoped to the website, and say so in their own opening lines: /privacy-policy is the "Detailed Privacy Policy For the Threema Website" and covers support forms, prize draws, webinars and newsletters, while /privacy-note is the "General Privacy Policy For the Threema Website" and lists the personal data processed as an IP address, browser and device details when you use a form, and what you choose to submit, such as contact details for support, webinars or newsletters. Neither mentions messages, calls or the app's data handling at all. Threema's technical documentation appears to live under /docs/work/whitepapers/, which the site's robots.txt disallows, so this monitor does not fetch it. Threema is widely and plausibly understood to be end-to-end encrypted; that is not evidence, and this site does not grade on it. No document we can lawfully archive states what the messenger can reach.
Did a step here not work, or does Threema offer a control this page doesn't mention? Tell us and we'll correct it.