SimDiablo? How do I sim my items?

Is there a sim app for Diablo 3 similar to Raidbots?
Thank you.

Maybe https://www.d3planner.com/?

Not familiar with Raidbots, but D3planner is the primary gear planner and simulator for D3. You can import your characters from your Battlenet profile. Customize your gear slots, stats, gems, augments, paragon etc.

You can see how different changes affect the DPS of different skills.

There’s a simulator feature I think you can also use to simulate your DPS from a skill rotation, but I never really use that.