Shake apps are created automatically when a developer builds an app with a bundle ID that hasn't been registered with your workspace before. In majority of cases, someone from your team had inadvertently built several new builds with various bundle IDs which created several new apps on your Shake web Dashboard.
The solution is simple: Archive those apps and that's it. Also, kindly remind all your app developers not to build apps with new random bundle IDs with Shake SDK inside.
Our Premium users will not be billed for these dummy apps. If the system billed you automatically, contact us so we can refund you fully and immediately, no questions asked.