Appian is a powerful enterprise grade business process management and workflow automation platform. According to vendor, it is used by over 3 million users worldwide (in line with 3.5+ million Bitrix24 users). Appian reviews are quite positive, but Appian pricing isn’t transparent – you need to send a quote request to company in order to know the costs. If you are looking for a free Appian alternative, Bitrix24 is a great choice. The best way to think of Bitrix24 is Workflows+CRM+Sales+HR+Documents+Projects+Communications in one. The cloud version of Bitrix24 is 100% free for up to 12 users. There’s also an on-premise (self-hosted) version that comes with open source code access.
* Please note that the information may have changed since the publication. For current prices and features please visit Bitrix24 pricing page.