Pingdom - With website monitoring from Pingdom you will be the first to know when your website is down. No installation required. 30-day free trial.
Aesthetic Wallpaper - The Aesthetic Wallpaper is an amazing app that offers a variety of beautiful backgrounds and wallpapers for your mobile phones.
StatusCake - Website Uptime Monitoring & Alerts – Free Unlimited Downtime Monitoring
Dope Wallpapers HD - Dope Wallpapers HD is an amazing mobile app having a variety of wallpapers and backgrounds for mobile phones.
Better Uptime - We call you when your website goes down
Vellum Wallpapers - Vellum Wallpapers is one of the best apps that provides a wide variety of HD Backgrounds and Wallpapers for lockscreens.