How to Choose On-Call Software for a Small Team

Write the minimum job

For a seven-person team, a useful requirement might be: one primary and one backup, weekly changes, temporary cover, two tested contact channels, and a record of who acknowledged each incident. This is an illustrative scope, not a universal design. A 20-person team with several service owners may need distinct rotations and permissions.

Separate required behavior from convenience. Start with the escalation policy builder to define the steps you will ask each candidate to demonstrate.

Use a comparable worksheet

Do not count a roadmap answer as a trial pass. Record “not confirmed” beside anything you could not demonstrate.

Test Slack as three separate requirements

A message appearing in a channel is notification. An acknowledgement button that changes incident ownership is an action. A resolution action that updates the incident is another. PagerDuty's Slack guide (opens in a new tab) documents a concrete integration, but it is not evidence that another provider supports the same operations.

For each action you need, try it as an ordinary responder, inspect the incident audit trail, and check what happens if Slack is unavailable. An admin-only demo can conceal a permissions problem your on-call will encounter later.

Calculate the complete cost

Use your written quote and observed trial workload:

annual operating estimate =
  annual subscription for required roles and features
  + estimated usage charges at your expected volume
  + administration hours × your internal hourly planning rate
  + one-time migration and training effort

Keep one-time and recurring lines separate when comparing later years. Include minimum commitments, currency, taxes where applicable, required add-ons, SMS/voice geography and what happens at higher volume. This is a worksheet, not a statement about any provider's current prices or contract terms.

Run one realistic trial before choosing

Create a disposable service. Page the scheduled primary, change the temporary cover, repeat at a handoff boundary, withhold acknowledgement and observe the backup, then resolve. Time the setup work and ask a second teammate to perform the same operations from your notes.

Reject an option that fails a requirement you cannot safely operate without, even if it wins the cost column. If the remaining options differ mainly in administration effort, use that measured trial effort in the comparison rather than a vague “simpler UI” score.

The relationship disclosure below matters: oncall.fyi is made by the team behind MonoDuty. This worksheet does not assert that MonoDuty supplies every schedule, Slack action or management capability listed here.