Odoo, Salesforce, Bitrix24, Pipedrive, ERPNext, BookupCRM, Workday, eWay-CRM, EspoCRM , Zendo, CiviCRM, Fat Free CRM, JoForceCRM, Corteza CRM, Revamp CRM, OnePageCRM, OroCRM, X2CRM, Centrium CRM, Spin CRM, SalesSeek, Heap CRM, Lead Zeppelin CRM, DokaCRM, Simple Sales Tracking, Copper CRM, Propeller CRM, icomplete CRM, Ninjodo CRM, Zendesk Sell, FreeCRM, CRM One, Zimplu CRM, Chili Sales, Soffront CRM, PipelineDeals are some alternatives to Crust CRM.