CRM and sales compared

A summary of what each vendor's own public documents say on the headline questions. Click a vendor for more.

Question	Apollo.io	Gong	HubSpot	Salesforce (Agentforce)
AI training on identifiable customer content: default	No Quote “You grant Apollo an irrevocable, perpetual, worldwide, transferable, sublicensable, and royalty-free license to analyze Customer Data using artificial intelligence to improve the Platform; and to test, develop, improve, or enhance Apollo’s products and services, provided that (a) any Customer Data used for such purposes will first be aggregated or de-identified”	No Quote “Is customer data used to train generative AI? No. Your data is never used to train generative AI models, and it’s never shared with or exposed to the public domain. Gong uses a secure, in-house AI framework that keeps your data fully isolated. We don’t co-mingle customer data, and any AI outputs are generated strictly within your own data environment, so you always stay in control of your data.”	Yes Quote “We may use Customer Data to develop, support, and improve HubSpot AI features and functionality. We may also use Customer Data to train our AI models in compliance with our obligations under the Agreement.”	—
Product-improvement use of content	Yes Quote “We use information to operate, maintain, analyze, and improve the Service and Website; troubleshoot issues; verify Users’ identity; and establish and manage accounts.”	Yes Quote “which content and data they have processed through our Services, and how we could improve their and others’ user experience and the value they can generate from using the Services, so we can continue improving our products, offerings and the overall performance of our Services, including through the utilization and optimization of Artificial Intelligence and Machine Learning capabilities \| Customer grants Gong a non-exclusive, worldwide, limited term, royalty-free right to host, use, copy, transmit and display Customer Data as appropriate for Gong to provide and ensure proper operation of the Services, including to prevent or address service or technical problems, in accordance with this Agreement”	Yes Quote “We use the information you provide us, professional data, log files, and usage data about how you or your users interact with our product and services to develop and improve our products, services, and communications.”	—
Terms change notice	Days stated Quote “We may modify these Terms of Service (except for Section 7) by posting updated versions of these Terms of Service on the Website or otherwise providing notice to you at least thirty (30) days before the changes take effect.”	Not stated	Effective on posting Quote “We update these terms from time to time. If you have an active HubSpot subscription, we will let you know when we update the terms via in-app notification or by email (if you subscribe to receive email updates).”	Effective on posting Quote “By continuing to use or log in to a Site after these Terms have changed, you indicate your agreement to the revised Terms.”
AI status	AI features Quote “Apollo uses artificial intelligence and machine learning technologies throughout our Services.”	AI-native Quote “Gong is ISO 42001-certified, purpose-built for revenue teams, and guided by a dedicated governance team focused on ethical use, human validation, and clear model oversight.”	AI features Quote “we may process personal data to develop, support, and improve HubSpot AI features and to train our AI models”	—

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