Guides
One question at a time, answered from what several companies’ privacy policies say, in the policies’ own words.
All guides
Do ChatGPT and Claude use your chats to train their AI?
What OpenAI’s and Anthropic’s privacy policies say about using your personal ChatGPT and Claude chats to train their models, the control they say you have and Anthropic’s stated exceptions.
Written October 26, 2026.
Can apps collect your location when you’re not using them?
What Yelp’s, Airbnb’s and Lyft’s privacy policies say about collecting your location while their apps run in the background or when you’re not using them, in the policies’ own words.
Written October 27, 2026.
Every company’s own report
A guide quotes a few policies on one question. Each company’s report has every finding published from its policy, free to read.
About Plainlyst
Plainlyst
Operated by JC RESERVE LLC
Official sources only. Every finding quotes the company’s own policy, and every record names the document behind it. We do not grade anybody.