Claromentis is a second-tier social intranet platform. While it is used by only 350,000 users worldwide (over the 15 years of existence), it comes with a surprisingly wide array of intranet tools ranging from eForms to meeting room booking. There are several reasons why Claromentis is not as popular as its peers. First, it was very slow to embrace mobile - and it still doesn't have Android app. Second, unlike Yammer or Bitrix24, there is no free plan. Finally, Claromentis offers limited access to source code, has no marketplace and is next to impossible to integrate with other tools. This is why if you are looking for a free Claromentis alternative, Bitrix24 makes a great choice.
* Please note that the information may have changed since the publication. For current prices and features please visit Bitrix24 pricing page.