DxO PErspective
I wasn’t sure about this application since I usually make these perspective adjustments in either Lightroom or Photoshop. But I had a «special case» that neither succeeded to fix. So for 15$ why not try DxO? Honnestly, I am very satisfyed with this product which is really simple to use and very efficient at what it does! I would recommand it for those who don’t have all the appropriate lenses to shoot buildings or architecture. This would certainly be a useful tool!
leo dunn about DxO Perspective, v1.0.3