Tsugra's privacy policy says API usage records, which hold numbers only, are kept on the device for 90 days.

Quote found word for word on the live source, last checked October 23, 2026

In the source's own words

“API usage records (numbers only; no conversations, questions, heart rate, location or API keys) are kept on the device for 90 days.”

Tsugra Privacy Policy, Tsugra, 2026, Privacy policy, section 1-1.

What it measures: Section 1-1 covers data that stays on the device.
What it does not show: Only the numbers are kept, and the page says no conversations, questions or heart rate are in these records.