SynthSignal on your phone

Add SynthSignal to your home screen

Android / Chrome: open the browser menu and choose Install app or Add to Home screen.

iPhone / Safari: tap Share → Add to Home Screen. Enable “Open as Web App” if offered.

Install from synthsignal.net. This is an installable web app, not an App Store or Google Play download. An internet connection is required.

Still seeing the old launch logo?

The current logo has a green iris. Android keeps its own copy of the app’s launch screen, so refreshing the page may not update it immediately.

Open the app once, then close all its windows and leave your phone charging on Wi-Fi so Chrome can apply the update. If the old blue-eye logo remains, open synthsignal.net/install in Chrome to reinstall. Before uninstalling, confirm your saved items are available in the browser and preserve any browser-only cards using Move browser-saved cards. You do not need to clear Chrome’s browsing data.

Already installed MarketSentry?

The old installation belongs to the old domain. Install SynthSignal from the new address, sign in with the same account and check your saved items before removing the old shortcut. Account-saved favorites, cards and rules use the same service.

Browser-only cards and settings do not move automatically between domains. Use Move browser-saved cards if needed. Device notification permissions must be set up again on the new domain when alerts become available.