Pushover - Real-time notifications on your Android, iPhone, iPad, and Desktop
Cameo - Book personalized video shoutouts from your favorite people
Pushbullet - Pushbullet - Your devices working better together
TagMango - Book personalized video shoutouts from your favorite people
Gotify - a simple self-hosted server for sending and receiving messages
Influencity - The most complete AI-powered Influencer Marketing platform for worldwide brands and agencies, with a full stack of solutions to manage and optimize influencer campaigns at scale.