Today we’ve added the simple tool to compare two applications. You can find it in Setup > Setup tab > Tools section > Diff Applications link.
It prompts you to select the application to compare current application to (you must have access to a setup section of the application to have it listed) and displays differences found in columns and tables. Tables and columns existing in your application only are highlighted in green, tables and columns missing in your application are highlighted in red. Columns that are present in both applications but differ in settings are highlighted in blue and the differences are displayed next to column name.
On the screenshot above, our new application is missing Resource table and Hourly Rate and Skill lookups to it. Costs formula is changed to use fixed hourly rate and new Skill Type column is added.