API driven testing. A testing framework that uses a programming interface to the application to validate the behaviour under test. Typically API driven testing bypasses application user interface altogether. It can also be testing public (usually) interfaces to classes, modules or libraries are tested with a variety of input arguments to validate that the results that are returned are correct.
To do more with less, developers reused test scripts during development and integration stages to work more efficiently. The demand for new software built, and the constant change to software under development opened the door for automation testing practices to serve as a reliable control mechanism for testing the code (Automated Software Testing, 1999).
Mobile versions. Because cloud-based accounting applications support anytime, anywhere access to financial data, their developers have made at least a subset of the main site's features available on smartphones and tablets. Kashoo was the first to build an iPad app, and One Up was actually developed for mobile use and only later made available through web browsers.

I think we can all agree that automation is a critical part of any organization's software delivery pipeline, especially if you call yourself "agile." It's pretty intuitive that if you automate testing, your release cycles are going to get shorter. "So, if that's the case," you might say, "why don't we just automate everything?" There's a good reason: automation comes with a price.