CCleaner - CCleaner cleans, speeds up and frees up space on business endpoints.
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.
Acer Care Center - Acer Care Center is a system optimization/cleaning tool pre-installed in acer products.
StatusCake - Website Uptime Monitoring & Alerts – Free Unlimited Downtime Monitoring
Clean Me - A small macOS app that acts as a system cleaner (logs, cache, …)
Better Uptime - We call you when your website goes down