Once you have 2+ people making changes, you need source control. We see this in every audit: sandbox sprawl, no change tracking.
Best for mid-market orgs. UI is intuitive, comparison engine is best in class.
Best for enterprise. Native Salesforce app. Complex but powerful.
Best for regulated industries that cannot send metadata outside the platform.
Start with Gearset. Solves 80% of problems in week one.