SocialEngine is PHP bases social network software that has been quite popular several years ago largely due to its low price and simple deployment. While SocialEngine still makes good sense for a consumer based social network, if you are looking for private social network for your company, clients or an enterprise social network, Bitrix24 is a much better alternative with a lot more business tools. * Please note that the information may have changed since the publication. For current prices and features please visit Bitrix24 pricing page.