Ostorlab - Ostorlab scans your web or mobile application and provides results showing threats and privacy issues.
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.
Privacy Scanner (AntiSpy) Free - Privacy Scanner (AntiSpy) Free performs a deep scan and sends an alert if it catches someone trying to hack into your phone.
StatusCake - Website Uptime Monitoring & Alerts – Free Unlimited Downtime Monitoring
App-Ray - App-Ray provides a cutting-edge solution for you to conduct a system-wide analysis and detect vulnerabilities in your mobile applications.
Better Uptime - We call you when your website goes down