GitHub is built for developers and open source teams, with a focus on repositories and pull-requests. Opsgenie targets atlassian users and small teams and leads with alert-management and on-call-scheduling.

On pricing, GitHub is the clear winner for budget-conscious users — starting at $4/mo compared to $9/mo for Opsgenie. That $5/mo difference adds up quickly for growing teams.

Both offer free plans, so you can test each with your real workflow before committing to a subscription.

GitHub edges out on user ratings (4.8 vs 4.3). While both are well-regarded, that gap reflects real differences in user satisfaction worth considering.

Feature-wise, GitHub offers broader built-in capabilities (7 features vs 6), while Opsgenie takes a more focused approach — which can mean a simpler, faster onboarding experience.

Both tools are a solid fit for startups — in those cases, the decision often comes down to workflow style and how your team prefers to organize work.

Bottom line: GitHub has a slight overall edge — but if affordable vs pagerduty matters most to you, Opsgenie may still be the right call.