Pick Healthchecks if
operators who will stay on Hobbyist at $0 while they add a first Product Sync check, then Supporter at $5 (same limits, support the project) or Business at $20 — not Business Plus $80 unless they need that printed tier.
Read the Healthchecks pagePick OneUptime if
sRE / indie teams who will self-host at $0, or stay on Cloud Free at $0 (1 status page, 100 subscribers, unlimited manual monitors) and add $1 active monitors until they need Growth at $22 for unlimited pages, on-call, and API access.
Read the OneUptime page