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

Edit - Edit any website, no code required

Push More - Receive webhook requests in Telegram

Flagsmith - Flagsmith lets you manage feature flags and remote config across web, mobile and server side applications. Deliver true Continuous Integration. Get builds out faster. Control who has access to new features. We're Open Source.

Pusher Beams - Send push notifications programmatically at scale

Splitmat - Splitmat is a URL shortener which can split your traffic between multiple pages.