Down Device vs Visual Sentinel
Down Device
downdevice.comVisual Sentinel
visualsentinel.comSide by side
| Figure | Down Device | Visual Sentinel |
|---|---|---|
| Price from | $9/mo | $4.50/mo |
| Free plan | Yes | Yes |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| API | — | Yes |
| Plans published | 4 | 15 |
| Spec score · DNS Monitoring Software | 7.9 (#17) | 8.5 (#7) |
| Integrations | The Enterprise plan lists custom integrations; no named integrations are listed on the pricing page. | The pricing comparison lists Google Analytics 4, Google Search Console, Cloudflare import and proxy bypass, and server-to-site correlation. |
| Intended users | The SSL monitoring page names SaaS companies, e-commerce sites, MSPs and IT consultants, internal infrastructure teams, and compliance-sensitive organizations as intended users. | The maker describes the product as serving small teams, agencies, and site owners. |
| Monitoring | Monitors websites, web applications, REST APIs, SSL certificates, domains, ports, network devices, and DNS. | The service offers uptime, screenshot-based visual comparison, SSL, DNS, performance, content, API, endpoint, and server monitoring. |
| Support | The homepage says the team responds to questions within hours; the Enterprise plan includes priority support. | The company says human support replies typically within 24 hours by email. |
Plans
Visual Sentinel
- Solo$6 a month
- Solo$54 a year
- Starter$12 a month
- Starter$108 a year
- Business$39 a month
- Business$351 a year
- FreeFree
- Agency$149 a month
- Agency$1,341 a year
- FreeFree
In their own words
Down Device
Down Device has no write-up on Specifiction yet; its figures are above.
Visual Sentinel
Visual Sentinel monitors websites and servers, including page changes that ordinary uptime checks may miss. Its monitoring covers uptime, screenshot-based visual comparison, SSL, DNS, performance, content, APIs, endpoints, and servers. For visual checks, it captures a page in a browser and compares the screenshot with a prior baseline. Users can exclude changing page elements with CSS selectors and set the amount of change needed to flag a capture. Failed uptime checks are repeated; a site is marked down only if it fails from all selected regions. Alerts can go to email, Slack, Discord, WhatsApp, Telegram, Microsoft Teams, PagerDuty, OpsGenie, webhooks, Prometheus, and browser push. The REST API manages monitors, incidents, status pages, maintenance windows, reports, and notification channels; API access is listed for Business and Agency. The Free plan costs nothing and includes three monitors, 10-minute checks, and one status page. Solo costs $6 a month. Visual Sentinel is built and operated by Acefina LLC and is intended for small teams, agencies, and site owners.