* Please note that the information may have changed since the publication. For current prices and features please visit Bitrix24 pricing page.
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There is free and open source CRM software out there, but good luck installing and customizing it. Most likely you'll need to hire a $100+/hr CRM consultant to make it even remotely usable. Bitrix24 isn't like that. Your CRM is ready to use in 30 seconds, right after you register your account at Bitrix24.com. Creating email templates, customizing CRM statuses, administering access rights is extremely easy. And we have videos and manuals to help too.
Bitrix24 CRM manual is available here. If you are interested in buying self-hosted editions of Bitrix24, which come with API, CMS and source code, can be easily customized and integrated with other tools, please download a trial version here.