LitMemo's AI features are processed through the third-party cloud platform Google Cloud Vertex AI. The specific services used may change at any time. When you use features such as AI chat and consistency checking, the relevant chapter content and materials are sent to Google Cloud Vertex AI for processing.
As of the date this page was last updated, under Google Cloud Vertex AI's API terms, customer data sent through the paid API is not used to train their AI models. Third-party providers' policies may change at any time; if there is a significant change, we will assess the impact and notify users.
If you do not want any content sent to third-party AI services, you can completely turn off AI features in your account settings. Once turned off, your content will not be sent to any third-party AI service.
Google account automatic sign-in prompt (One Tap): While you browse LitMemo, if you are already signed in to a Google account in your browser, the system may show a one-tap "Continue as X" sign-in prompt provided by Google. This feature is provided by Google Identity Services and places a Google cookie in your browser for identity verification. You can dismiss this prompt at any time (by clicking the "×"), and Google will automatically reduce how often it appears in the future. We do not receive any personal information from this prompt unless you actively click to sign in.
Ad measurement (Meta, Google Ads): When you browse the production site, we may use the Meta (Facebook) Pixel and Conversions API to measure advertising performance. To match those events, we may share SHA-256 hashed identifiers (for example, a hash of your email address) with Meta; we never send your plaintext email or any of your creative content. We also send your IP address, browser User-Agent, and Meta's click / browser identifier cookies — per Meta's specification these are transmitted in the clear, not hashed. Conversion events such as subscribing, renewing and activation often occur when your browser is not online, so that they can still be matched we retain the IP address and User-Agent from your most recent registration / sign-in / checkout on your account record.
If you reached this site by clicking a Google ad, we record that click's ad click identifier (for example gclid) on your account record for up to 90 days; when you later register, activate or subscribe, we report that conversion to Google Ads together with the identifier, plus a SHA-256 hash of your email address — used only so that a conversion you completed on a different device can still be matched, and never as plaintext. This path installs no Google Ads tracking code in your browser and sends no IP address or creative content.
Website analytics (Google Analytics, Microsoft Clarity): We use Google Analytics 4 to understand how the site is used (which pages are visited, how long people stay, which channel they arrived from), and Microsoft Clarity to record anonymised interaction history, including session recordings and click heatmaps, so we can find the parts of the interface that do not work. Both tools place cookies in your browser.
So that events which can only be determined on our servers — completing registration, crossing the activation threshold, a subscription renewal — can still be attributed to the right channel, we retain a Google Analytics identifier on your account record. It is a random number that identifies a browser; it contains neither your name nor your email address, and none of your creative work is sent along this path. You can block these analytics tools with a browser setting or extension; the site keeps working either way.