For a period tracking app, you can use Clue. They also has many well researched articles on the female reproductive system on their app and their website Hello Clue. Source: about 1 year ago

Here's the website, they have an Apple version too: https://helloclue.com/. Source: over 1 year ago

I came up with the various symbols myself; for fertility stuff my first thought would be to look at what Clue is using these days, if you're drawing a blank (as it were) on anything! Let me know if you'd like to see a more recent/more filled-out version :). Source: over 1 year ago

Can’t vouch for the efficacy because I haven’t used the feature, but the cycle tracking app I use clue has a new birth control feature that’s FDA cleared. it’s by far my fav tracking app and i’ve been a loyal user for years now, so i’m sure their BC function is good too. Source: over 1 year ago

Please check out Clue App on Android and iPhone. This app refuses to sell data and will keep you safe. It's already used by 12 million people, make the number higher! Source: about 2 years ago

Why does it have to be a web app? It does not meet your requirements, but when I looked into this sort of task before, the best option looked like Gramps [0], which was discussed at [1].

  [0] https://gramps-project.org.

- Source: Hacker News / 9 months ago

Is there a reason to prefer Webtrees over an open source desktop app like Gramps? https://gramps-project.org/. - Source: Hacker News / 12 months ago

My technique is to maintain my tree off line in Gramps and do online work in the always free FamilySearch. Source: over 1 year ago

Alternatively, there's Gramps (free): https://gramps-project.org/. Source: over 1 year ago

I think you are looking for Gramps. Source: almost 2 years ago