You can use Bitrix24 Open Channels as free Olark alternative. But Bitrix24 is much more than just a live chat widget for your website. Bitrix24 also has a callback widget, it works with Facebook, Viber, Telegram, Slack and other popular messengers and social networks. Most importantly, it comes with a full featured free CRM. The idea behind Bitrix24 is simple. It doesn't matter how a client contacts you - live chat, social network, telephone call, email, instant messenger - this information will be saved to our CRM so that you can track and market to that person. Whereas other live chat solutions stop at the initial contact, Bitrix24 gives you email and telemarketing, quotes, invoices, online payments and 35+ other sales automation tools. So, read Olark reviews, look at other competitors, compare pricing with Bitrix24 and make your choice.
* Please note that the information may have changed since the publication. For current prices and features please visit Bitrix24 pricing page.