What are some alternatives?
When comparing Wise Notifications and Roost, you can also consider the following products
PushAlert - PushAlert allows you to send push notifications to your website subscribers on Chrome, Firefox and Safari. Signup for free and send unlimited notifications.
PushCrew - Push Notifications for Websites
PushOwl - Re-engage website visitors with push notifications
OneSignal - Customer engagement platform used by 800K+ developers; the fastest and most reliable way to send push notifications.
PushEngage - Personalized Browser Push Notifications.
Pusher Push Notifications API - Send push notifications programmatically at scale