1f56bc31_ox_vs_App___SharePoint_Dragons__Farm
[0] Manageability [Sandbox] Easy to manage within the SharePoint farm. [Apps] Can be managed on a dedicated environment without SharePoint. Dedicated app admins can take care of this. [Farm] 
Easy to manage within the SharePoint farm.
SharePoint 2013: What to do? Farm solution vs Sandbox vs App | SharePoint Dragons
Farm