| Price from | — | $10/mo |
| Free plan | — | — |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| iOS | Yes | — |
| Android | Yes | — |
| API | — | Yes |
| Self-hosted | — | Yes |
| Plans published | 5 | 4 |
| Spec score · Uptime Monitoring Software | 8.3 (#13) | 8.5 (#8) |
| Spec score · Uptime monitoring services | 7.5 (#33) | 8.4 (#15) |
| Alert channels | email,SMS,phone | Slack,Microsoft Teams,Telegram,Discord,Google Chat,Gotify,Matrix,Mattermost,n8n,Ntfy,Opsgenie,Email,Gitea,GitHub,GitLab |
| Free plan | No | Yes |
| Keyword monitoring | Yes | Yes |
| Monitor limit | 25 | 30 |
| Purpose | AlertBot monitors websites, web applications, mobile sites, and services for errors, slowdowns, and unresponsive behavior. | Gatus monitors services at configured intervals and uses conditions to determine endpoint health. |
| Server monitoring | Yes | Yes |
| Support | The company says customers can call for immediate help or email for same-day, often same-hour, support; pricing also lists phone, email, and chat support. | The contact page directs bug reports and suggestions for the open source project to its repository and reserves its contact form for managed-service inquiries. |
