I didn't chime in earlier, but as Adobe is the "800 lb gorilla" of the photo editing world, you'll find just about everything is designed to support their software. Loads of software that can operate as a plug-in ... build those plug-ins for Photoshop & Lightroom. But the downside to Adobe software is that you can no longer just buy it. Now you have to "rent" it by the year. I am frustrated that people let them get away with calling it a "cloud" model since the features needed to qualify as a "cloud" product are not present. They do not offer "service elasticity". I can not pay for the software when I want to use (at the point of value) and not pay when I am not using it. They act like you get to rent it by the month... but it isn't actually possible to rent it for a month. It's a subscription with 1 year terms. I bought Affinity for my iPad (of all things ... I still don't own it for the desktop). I found that it's really pleasant to use. It does everything I would normally use Photoshop to do (it even knows how to open .psd files) but it's easier to use and frankly it seems to do a better job. I was impressed. And of course you don't have to "rent" it. I have not yet found a non-rent version of digital asset management (something to replace Lightroom). Skylum makes a program called Luminar and they are positioning themselves as a Lightroom alternative. But the big "catch" is that they do not have digital asset management ... but claim they are launching this in 2018. I'm taking the "wait & see" ... I would only buy it if they had digital asset management (and it needs to be decent). But on the plus side... this is software you get to "buy" (and it's reasonably priced). It's not "rental" software on a 1 year term like Adobe.