Adobe Photoshop CC 2015 is available as part of Adobe Creative Cloud for as little as $19.99/month (or $9.99/month if you're a previous Photoshop customer). Adobe Photoshop CS6 is still available for purchase (without a monthly plan) if you prefer.
Adobe Photoshop CC 2015, the industry standard for digital image processing and editing, delivers a comprehensive package of professional retouching tools, and is packed with powerful editing features designed to inspire.