Much better choices as a complement to one of the Big Two are Stata and some dialect of S (R, S, S-plus). Stata users say it has some very slick programming facilities. (I’m not among them, so I can’t say from experience.) The S dialects are killers for simulation studies. I benchmarked R against SAS/IML (in version ) and found R was an order of magnitude faster. R is built entirely around an object-oriented programming interface. Language extensions are a snap. In my opinion bootstrap estimation is easier in R than in other languages. High resolution graphics are native to R, and (despite a lot of improvement from versions 6 to 7 to and ) not native to SAS.
AppOnFly has a different approach -- the company maintains Windows computers with a wide selection of Windows software, including utilities for accessing PDF, ZIP, graphics and other files, web browsers, various office suites (MS Office, Libre Office, Apache OpenOffice, WordPerfect Office), and statistical packages (SPSS, NCSS, R), to mention a few. They then provide apps for accessing this Windows desktop environment from any device -- computer, smartphone, tablet (Windows, Mac OS, iOS, Android). This is a pay-for service, but they offer one-month free trials.