Pusher Beams - Send push notifications programmatically at scale

Orgzly - Outliner for notes, tasks and to-dos

Snowball Smart Notifications - Get the notifications you want and none of the rest

All Note Pro - All Note Pro app contains features to enable users to write their new ideas and important details on their mobile phone to share them with the outside world.

Engagespot - Engagespot is the easiest way to build your product's multi-channel notification infrastructure. Deliver In-App, Email, Push, SMS, WhatsApp and chat notifications from your app to your users with a single API.

Notin - Notin – notes in notification app helps users in creating alarms to get reminders about important tasks right on the home screen.