Flowhush vs Cronitor

Cronitor is a broad monitoring platform. It covers cron jobs, heartbeats, website and API uptime checks, status pages, and more. Flowhush does one part of that: heartbeat monitoring for automation workflows and scheduled jobs, with checks on the output each run produces. This page compares the two where they overlap. We make Flowhush, so every Cronitor fact below links to their pricing page or docs. Prices are as of November 2026.

The short version

• Choose Cronitor if you want one tool for jobs, uptime checks and status pages, need cron-schedule awareness with timezones, SMS or on-call integrations, or a team with roles and SSO.
• Choose Flowhush if your jobs are n8n, Make or Zapier workflows or AI agents, and you want to fail a run when its output is empty, not valid JSON, missing required keys, or contains forbidden phrases, at a flat price.

Pricing

Cronitor's pricing is per unit. Flowhush's is per plan.

What that means in practice, assuming one Cronitor dashboard user:

The Cronitor price buys more than heartbeats: the same monitor allowance covers uptime checks, and Business includes SMS, on-call integrations, roles and SCIM. If you'd use those, the comparison isn't like for like.

Feature comparison

The key difference: metrics vs payloads

Both tools can catch a run that "succeeded" with bad results. They do it differently.

Cronitor has you send numbers. Your job reports metric=count:0 and an assertion on the monitor (for example, that count must be above zero) raises an alert. That's precise and scales well. It also means your code has to compute the number and add it to the URL, because the request body is discarded.

Flowhush has you send the output itself. The final node posts the JSON it produced, and the monitor checks it:

# Cronitor: report a count, assert on it in the monitor settings
curl -fsS -m 10 "https://cronitor.link/p/YOUR-API-KEY/lead-sync?state=complete&metric=count:0"

# Flowhush: post the result, require keys on the monitor
curl -sS -m 10 -X POST -H 'Content-Type: application/json' \
     -d '{"leads": [], "synced_at": "2026-11-03T08:00:00Z"}' \
     https://flowhush.com/p/YOUR-MONITOR-UUID
# → OK (recorded as failure: Missing or empty JSON key: leads)

In n8n, Make or Zapier the Flowhush approach takes less work, because the data is already JSON. In n8n, the last node is an HTTP Request node with Method POST, Send Body on, Body Content Type JSON, Specify Body Using JSON, and {{ JSON.stringify($json) }}. No expression has to build a metric string. For AI agents, payload checks also catch things a count can't, such as a refusal ("I'm sorry…") inside an otherwise valid response (Team plan).

In custom code where you control everything, Cronitor's metrics are more flexible: you can watch any number, not just whether a field is present.

Schedules and tolerance

Cronitor understands 0 2 * * * in your timezone, can allow a set number of missed runs or failures before alerting, and can assert on minimum and maximum duration. Flowhush expects a success ping every N seconds after the last one, from 60 seconds to 31 days, with a grace period of 60 seconds to 7 days. Every failure alerts once and every recovery sends a notice. For weekday-only or calendar-driven jobs, Cronitor models reality better.

Setup effort

Cronitor has SDKs and platform integrations that can discover existing cron jobs on Linux, Kubernetes, Windows, GitHub Actions and Airflow. If you have hundreds of server jobs, that saves time. Flowhush has no agent or discovery. You create monitors in the dashboard or through the REST API and add one HTTP call to each job.

When to choose Cronitor

• You also want website/API uptime monitoring and status pages in the same place.
• You need cron-aware schedules with timezones and failure tolerance (alert only after N failures).
• You need SMS, PagerDuty, OpsGenie or Splunk On-Call, or several users with roles and SSO.
• You want to track numeric metrics from jobs and alert on thresholds.
• You run many server jobs and want them discovered automatically.

When to choose Flowhush

• You monitor no-code workflows or AI agents and want to fail runs on empty or malformed output without computing metrics.
• You want predictable pricing: 50 monitors for $12/month or unlimited for $29/month, without per-user charges.
• Email, Slack, Discord or Telegram alerts are enough, and interval-based schedules fit your jobs.

Flowhush's Free plan includes 5 monitors and no credit card is needed, so you can run it next to an existing setup and compare.