Email: Marion.m.moranetz@gmail.com
I'm a solo developer. I read every email and usually reply within a few days. Please put Forecast: Cycle Syncing in the subject line so I can triage quickly.
Everything lives on the device, so deleting the app deletes its data. That is deliberate: there is no copy of your cycle anywhere else. If you plan to reinstall, log your last period start afterward and the forecast rebuilds from there.
Not today. There is no cloud and no sync layer, which is also why nothing can leak. If sync ever ships, it will be announced in the release notes and covered in the privacy policy first.
No. See the privacy policy.
App Store refunds go through Apple, not me: reportaproblem.apple.com
Please email me. Solo dev, so I can't promise everything ships, but I read everything.