IBM defines custom software development as " the process of designing, building, deploying, and maintaining software for a specific set of users, functions, or organizations." Custom software is a form of software solution created and developed specifically for an organization, brand, company or individual. Often referred to as bespoke software or bespoke software, custom software solutions typically help brands improve efficiency, productivity, consumer relationships, and ultimately increase revenue because the elements have been developed with specific goals in mind.
On the other side, we have ready-to-use software. Think of any software you bought, instead of having it made for you. Like Microsoft Office or Adobe Photoshop for Real Estate Photo Editing example. Now the term "off the shelf" is a holdover from the days when we had to go to the store to buy software, which was nicely packaged in a box, which we picked out, brought to the counter, paid for, and then brought home to install on our computer.