What matters for one person
- Quiet by default: most errors should never reach your phone.
- Loud for outages: a phone call, not just an email.
- A backup for when you're on a plane.
- Context: what broke and the fix, so 3 a.m. takes minutes.
PagerDuty's free plan (up to 5 users, 1 schedule) also works for one person; it pages but doesn't diagnose or roll back. See Pagerless vs PagerDuty and all comparisons.
Questions
What is the best on-call tool for a solo developer?
For one person, pick a tool that is free for you plus a backup, calls your phone only for real outages, and explains what broke. Pagerless does that: free for you and one backup, a call after 5 minutes without a tap, and a one-tap undo for bad deploys.