Aneka .NET Spring .NET framework Force Apex -- Microsoft NET, PHP, Java Azure Heroku Ruby, Java, Python, Rails, Sinatra, ramaze, Scala, Clojure
, camping, Spring, Grails, Node.js Play, Tapestry Twisted, Django Amazon Hive and Pirg, mrjob Elastic Cascading, Java, Ruby, MapReduce Perl, Python, PHP, C++ CloudFoundry Java, Ruby, Scala, Spring, Rails, Sinatra, Python, PHP, Node.js Grails Lift, Persistence options Pricing AppEngine Big Table Maximum 500 MB storage and 10 apps free for developer Aneka RDBMS, SQL Express, -- MySQL and flat files.
Both Python and Java are in a beta stage on Heroku, although developers can use them; in addition to these languages, Heroku supports development via Ruby, Node.js, and Clojure
. Developers also can use PHP when developing applications for Facebook.