Web Push (VAPID), Android (FCM), iOS (APNs), In-App Popup, Toast & Transactional Email OTP engine.
Free
One server, in communication & collaboration. Web Push (VAPID), Android (FCM), iOS (APNs), In-App Popup, Toast & Transactional Email OTP engine.
Communication & Collaboration
Web Push (VAPID), Android (FCM), iOS (APNs), In-App Popup, Toast & Transactional Email OTP engine.
The rest either hold an API key issued by the publisher or ask for nothing.
Listed without a verification tick. Read the listing before installing.