Support Portal.

From any app (browser, Twitter, Instagram, etc.), tap the Share button on any page or link. Select Social Link Vault AI from the share sheet. The link is saved instantly to your vault.

When you save a link, the app fetches the public page content directly from your device. You can summarize links locally using on-device models, or optionally connect your own external API keys (Google Gemini, OpenAI, Anthropic Claude, DeepSeek, Groq). If you use external keys, calls go directly from your phone to the provider using hardware-backed Android KeyStore encryption — YZH Studio servers never see your keys or your queries.

Link Health Check periodically verifies that your saved links are still reachable. It flags broken URLs (404 errors), redirects that changed, and expired domains. You can run it manually or set it to run automatically in the background.

Yes. Go to Settings → Export Vault to download a copy of your links as a JSON or CSV file. This file is saved to your device's Downloads folder.

There is no artificial limit set by the app. The practical limit is your device's available storage, which is typically thousands or tens of thousands of links.

Enter the price and quantity for two products. Compare Value calculates the price per unit (e.g., per gram, per ml) for each product and tells you which is the better value. The calculation is: Unit Price = Price ÷ Quantity.

Yes. Compare Value automatically converts between compatible units (e.g., grams and ounces, ml and fl oz) so you always get a fair comparison even when products use different units on their packaging.

The web app provides the core unit price calculator experience. The Android app includes additional features like a cart comparison view, comparison history, and offline support without any internet-required features.

Any saved comparisons are stored locally on your device only. Nothing is sent to our servers. The web app does not save any data across sessions.