Base CRM is a cloud enterprise CRM vendor founded in 2009. Base CRM comes with great user interface design, but is priced very aggressively - the starter plan that doesn't have CRM essentials, like access rights management, document repository or task automation costs $25/user/mo, and Base CRM top plan is a whopping $145/user/mo. Another big disadvantage is that Base CRM offers a free plan only with basic sales communication tools, it doesn't have a self-hosted option, meaning you can't 'own' Base CRM and will have to pay forever, if you want to use it. If you are looking for a free Base CRM alternative that has pretty much EVERY feature currently available in Base CRM, except geolocation, and is available both in cloud and on-premise, Bitrix24 makes a great choice.
Using Bitrix24 as Base CRM alternative
* Please note that the information may have changed since the publication. For current prices and features please visit Bitrix24 pricing page.