Cronitor's free Hacker plan covers 5 monitors with email and Slack alerts. Its Business plan is pay-as-you-go: roughly $2/mo per monitor and $5/mo per additional user, with volume discounts at scale (as published July 2026 — verify with the vendor). A single monitor with one seat starts around $7/mo. Status pages are add-ons — branded pages around $25/mo, private pages around $50/mo. Enterprise plans start near $6,000/yr.
Per-unit pricing is honest and scales down beautifully — a solo developer with three cron jobs pays almost nothing. It scales up quickly, though: 20 monitors and two users is ~$50/mo, and 100 monitors crosses $200/mo before add-ons. And because Cronitor is a cron-first specialist, most teams still buy a second product for full uptime, SSL, and DNS coverage.
FourSight inverts the model: Growth is $40/mo flat for heartbeat/cron monitors (5-field cron expressions, grace periods, miss thresholds) plus 100 monitors across all 8 check types, 30-second intervals, escalation policies, and 5 hosted status pages. The bill doesn't move as you add monitors within the tier.