But it doesn’t have some of the more advanced features like layers or selective edits that some of the other apps on this list have. There are a ton of powerful tools you can use to retouch and even edit your images. If you’re looking into Photoshop from more of a photography angle, then you might want to launch Photos, the default picture app on your Mac. But if you don’t mind a steeper learning curve, GIMP is a great, free solution to Photoshop. Many people online have complained that it’s not as easy-to-use or as intuitive as Photoshop. Perhaps the biggest downside to GIMP is its interface. And because it’s open-source, there are a lot of downloadable add-ons you can get to improve it. It’s loaded up with advanced tools, also like layers and masking. GIMP is completely open-sourced and isn’t limited to a free trial or add an unwanted watermark to your images. GIMP is arguably the most popular free alternative to Photoshop.