Side by side, from each tool's own website. A tool's rating shows once it has 3 reviews.
From each tool's own website, checked on the dates below, and from published reviews.
From the facts checked for both tools, not from opinion. A fact we haven't confirmed for one of them is never counted.
Nobody has reviewed Sling yet. Its rating shows once it has 3 reviews.
Review SlingNobody has reviewed When I Work yet. Its rating shows once it has 3 reviews.
Review When I WorkFrom the platforms and integrations each website lists.
Reviewers who say they used one of these before the other.
No reviewer has said they moved between Sling and When I Work yet.
Your review makes this comparison better for the next person. Review Sling or review When I Work.
Sling: Facts from getsling.com, checked November 11, 2026. Sources: getsling.com, getsling.com/pricing, getsling.com/features-2, getsling.com/integrations.
When I Work: Facts from wheniwork.com, checked November 11, 2026. Sources: wheniwork.com, wheniwork.com/pricing, wheniwork.com/features/employee-scheduling-software, wheniwork.com/integrations.
Prices change, so confirm on their sites.