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About

Larm is an uptime monitoring platform that checks websites, APIs, and services from multiple global locations and only alerts you when multiple probes confirm a problem. This multi-location verification eliminates the false positives that plague most monitoring tools. Larm supports HTTP, TCP, DNS, SSL certificate, and heartbeat/cron monitoring. Every HTTP check captures a full request waterfall (DNS, TCP, TLS, TTFB, transfer), giving you the data you need to debug performance issues, not just know something is down. Status pages are included on every tier, including the free plan. Pages are rendered as static HTML and served from a CDN, so they stay up even when your infrastructure doesn't. Custom domains, email subscribers, automated incident updates, and component grouping are supported on paid plans. Alerts can be sent through 13+ channels.

About

Sentinel is a hosted monitoring service for websites, APIs, and network services. It runs HTTP/HTTPS, JSON/API, keyword, SSL certificate, DNS, domain expiration, ping, TCP port, cron job, and heartbeat checks, with response-time data and public status pages. Checks can run as often as every 15 seconds from 15 locations across six continents, with multi-location confirmation for outage alerts. Teams can receive notifications through email, SMS, Slack, Microsoft Teams, Discord, Telegram, PagerDuty, and webhooks. Sentinel also provides a REST API, command-line tools, a Terraform provider, and an MCP server for automation. A free plan is available, while paid plans start at $14 per month; plans include API access and do not charge per seat. The service is intended for developers, DevOps and SRE teams, and businesses that need to monitor service availability.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Sysadmins, software engineers, founders, tech startups

Audience

Developers, IT professionals, DevOps and SRE teams, and SaaS businesses.

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Not Supported

API

Offers API Supported

Screenshots and Videos

No images available

Screenshots and Videos

No images available

Pricing

$19/month
Free Version Supported
Free Trial Not Supported

Pricing

$14/month
Free plan available. Paid plans start at $14 per month; plans include API access and have no per-seat fee. A 14-day free trial is available on paid plans.
Free Version Supported
Free Trial Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

Larm
Founded: 2025
United Kingdom
larm.dev

Company Information

Rootstuff
Founded: 2010
United States
sentinel.rootstuff.io

Alternatives

Alternatives

Pulsecima Pulse

Pulsecima Pulse

Pulsecima
Server Check

Server Check

FearWorks Media Ltd.

Categories

Server Monitoring Supported

Categories

Website Monitoring Supported

Integrations

Discord Not Supported
GitHub Not Supported
Microsoft Teams Not Supported
Model Context Protocol (MCP) Not Supported
PagerDuty Not Supported
Rootly Not Supported
Slack Not Supported
Telegram Not Supported
Terraform Not Supported
incident.io Not Supported
n8n Not Supported

Integrations

Discord Supported
GitHub Supported
Microsoft Teams Supported
Model Context Protocol (MCP) Supported
PagerDuty Supported
Rootly Supported
Slack Supported
Telegram Supported
Terraform Supported
incident.io Supported
n8n Supported
Claim Larm and update features and information
Claim Larm and update features and information
Claim Sentinel by Rootstuff and update features and information
Claim Sentinel by Rootstuff and update features and information