One of the softwares we need for Hololens development is Vuforia. We have an agreement with them to assist us in getting started. As long as we have less than 1000 end users accessing our apps, we can use the Free version. It will have a small watermark on screen. See example below:
Once we are approaching either surpassing 1000 end users or looking to sell our products, we will need to upgrade to the Pro Licensing. We have 2 options at that point. Either go with Device Only app (IOS, Android, Universal Windows Platform) or we go with the Cloud option. I believe the Cloud also includes the Device Only platforms based on its cost. have quotes for each of those.