Add Helperly to your home screen for a full-screen app experience and push notification reminders, from Account → Profile.
Visit your profile page and tap Install Helperly. Your browser will ask you to confirm — once installed, Helperly opens in its own window without browser chrome.
On iOS, push notifications only work once Helperly is installed to your home screen this way — Safari itself can't deliver them. On Android and desktop, you can turn on push notifications from a reminder's settings whether or not you've installed the app, but installing still gives you quicker access.