
Some AI assistant apps may use personal data for business purposes, but whether they sell it depends on the company's privacy policy, jurisdiction, and data practices. You should check the official policy before trusting any app.
Look for plain answers to a few questions: what data is collected, whether data is shared with third parties, whether it is used for training, whether it is sold, and how you can opt out or delete it. If the policy is vague, be cautious.
Also consider app permissions. An assistant that accesses contacts, calendar, files, or location may handle more sensitive information than a simple chat app.
The privacy policy is where selling or sharing must be disclosed. Search it for the words sell, share, partners, and advertising, and check whether there is an opt-out for data use beyond providing the service.
Reputation is not a substitute for reading. Well-known apps have changed data practices in updates before, so skim the policy's data-sharing section again when major new features or free tiers appear.
Whatever the business model, your own exposure is the variable you control. Share the minimum needed for the task at hand, and assume anything entered could persist longer than the conversation.