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So why the fuck don’t women just use that?

They probably don't know about it. If I search "period tracker" on Google Play, Drip is in about 40th place in the results. That's several screens down, past a bunch of search suggestions, and the parts where it's open source, on-device, and optionally encrypted aren't clear until I tap on it and read the description.

And you probably can’t even get drip on iPhones.

There's some irony in a comment dealing with people making decisions that are against their interests because they're insufficiently informed speculating incorrectly about something like this when it's easy to check. Drip is, in fact available for iPhone.

If you have an iPhone just use the Apple Health app. It works great and the data is encrypted and never shared with anyone.

Wrong, Apple Health fails to include a libre software license text file. We do not control it, anti-libre software. Does Apple really think we are this easy to scam? Others here have given a solution.

I tried to talk to my wife about data ownership, opensource, etc. but it's difficult to convey how important it is. She uses Flow. I'm trying to get her to at least try alternatives such as Drip

Well on iOS there’s the Apple health app. To my knowledge it stores health data locally. I’ll double check now.

Edit: it does store health data in iCloud by default, but according to Apple its end to end encrypted

By default, iCloud automatically keeps your Health app data, including health records, up to date across your devices. To disable this feature, open iCloud settings and turn off Health. iCloud protects your health records data by encrypting it both in storage and during transmission. If you're using iOS 12 or later and have turned on two-factor authentication for your Apple Account, health records are encrypted using end-to-end encryption through iCloud. This means only you can access this information, and only on devices where you’re signed in to iCloud. No one else, not even Apple, can access end-to-end encrypted information.

Not wrong. You're arguing a different point than what they said.

Wrong, Apple Health fails to include a libre software license text file. We do not control it, anti-libre software. Does Apple really think we are this easy to scam? Others here have given a solution.

What fact did I get wrong? Be specific.

I happen to be a penis owner.

So what would happen if I were to install and use such a monthly tracker app and pretend I've been having regular monthlies for a while, then suddenly I miss a couple periods, then suddenly start having periods again?

Would the cops come beating my door down claiming I had an abortion?

Fuck this dystopian mass surveillance shit!

I legitimately have an idea for an app that solves this problem. Its key feature, besides being open source, would be that people without uteruses could use it too, making any data conceivably collected useless.

I don’t have the skills to make it myself (yet), but if any developer wants to talk I’ll give the idea away. I just want it to be made.

App would be open source, all data local. Perhaps the option to sync to encrypted iCloud or Android equivalent, but certainly not a cloud-based option you need a new login for. All the features currently in these kinds of apps and that make them useful for menstruating people. Now replace “period” with “hair cut”. Non-menstruating people can now use it, earnestly, for tracking when their last hair cut was, making it useful and the data (if it were to be collected somehow) just noise.

I even have a name in mind: “hair**.**cuts” (heavy emphasis on the period in the name.) Idea is that anyone with it on their device has plausible deniability that they are using it for period tracking, but the “period” in the name is an implicit wink so we all know what it’s really being used for.

For christ sake, is there no open source option for such a simple task?

Edit:
2 people here could point to drip within 15 minutes of my post, and a third to the fact there are options on F-droid. So why the fuck don't women just use that?
Well i guess the ones with harmful advertising have better graphics or somemeting. Or the fact they allow advertising makes them more visible on google play. And you probably can't even get drip on iPhones.

never shared with anyone.

Anti-libre software, Apple Health, bans us from proving this and worse, bans us from fixing it. We do not control it. Others here have already given a solution.

And which phone has a libre radio baseband? Perhaps extremism ad absurdum is not useful advice.

i'd like to point out that it shouldn't be on women (or anyone) to be on constant guard against attacks on their privacy.

yes, it is the state of the world, but the attitude of your comment is victim blaming.

let's not forget that while we on Lemmy may be aware of the danger of mass surveillance tech, we're not the majority.

snowden told us years ago how fucked everything is, and surveillance has only grown since then. let's not forget that it is not normal that corpo data-mining is the norm (along with included de-facto warrantless surveillance). Even though we all should be better, nobody should have to be as careful as we are.

hell, let's be real. As long as we use a smartphone, we're not being careful enough either.

Exacty, Drip features tracking for temperature, cervical mucus, the cervix, sex (solo or partner), desire, pain, and mood, along with spotting and your bleeding levels. It's not just about "when will I have my period?" Additionally I love Drip because of the heads-up notif I get from them 3 days before my predicted period date. Also ut's nice to have a computer calculate when my period will be and shows me if any were a little off or earlier than expected.

Plus since it's encrypted and local, law enforcement would have to crack that to find my period data. I could totally imagine law enforcement coming up with a bullshit warrant and breaking into someone's home, and finding a calendar or notebook marked with their period data and being tried for it.

Yeah, and of course I haven't looked into all of the tech and security of ways to set up these apps. I'm just exhausted myself from it seeming like nothing is ever 100% secure or free from risk, and I'm so cynical about the country I live in and what it will become in the future that I would just rather not trust anything at this point. I'm sure that doesn't 100% hold water/is completely rational, but it's where my head is.

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Wrong, Apple Health fails to include a libre software license text file. We do not control it, anti-libre software. Does Apple really think we are this easy to scam? It bans us from fixing backdoors.