Your Period Data Should Be Private: "We recommend using Euki."

Mozilla claims open source but that doesn’t appear to actually be true - the previous version of the app was released under GPL 3 2 years ago. I can find no claim on their website that the new revision is open source or any way to access the source, and they’re not on F-Droid. IMO that’s a no go, no matter how thorough Mozilla was in their 3 hours of testing.

I recommend drip. which is actually open source, fully local and available on F-Droid.

Or… Go analog for this private Data… Omfg

Not a woman but incase anyone needs to hear this: if you are using an app - assume that data to be very public and being used by exactly who you wouldn’t want to see it.

I have no experience with Euki, or any clue (pun-intended) on if it’s good or not. I personally use, and recommend, drip. It only saves the data on your device. That can be an issue if you keep breaking or losing phones. I guess only better option would be to make my own notebook, mark the days there. It’s just math to figure out how far X days are apart from each other.