Does deariary use OpenAI?
Yes
We hold strong evidence for this.
- The company names it in its own subprocessor list, a statement that this vendor handles its customers' data.
- The company's privacy policy names it as a processor, controller or partner.
How we know
About deariary
Deariary connects apps like Google Calendar, Slack, and GitHub and uses AI to turn the logged activity into a personal diary entry each morning. It serves people who want a private daily diary without writing one themselves.
Summarized from its homepage on 9 Nov 2026.
What else deariary uses
deariary has evidence for 11 vendors. The strongest:
Vercel
Anthropic
Google
Google Cloud
Resend
Sentry
Stripe
Cloudflare
Google Workspace
Other companies using OpenAI
Check any company's vendors in seconds
See deariary's full stack with a source for every vendor, and ask the same question about any company from the API, Claude or your browser.
- Every company and vendor, with its public source
- 100 API calls a month, plus MCP and the Chrome extension
- Work email only. No card, no sales call