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

Take XRP for an example, what has "constant problems with regulations" got to do with its function? You can find out its function here with a quick browse of the ripple website. Source: over 1 year ago

Suggest you read up and learn from https://ripple.com/xrp/ before posting. Source: almost 2 years ago

The cheapest withdrawal fees on Bitstamp are XRP which is only 0.02 XRP to withdraw and XLM which is only 0.005 XLM. Source: almost 3 years ago

"RippleNet customers can use XRP for sourcing liquidity in cross-border transactions, instead of pre-funding—ensuring instant settlement, lower exchange fees and more efficient use of working capital." https://ripple.com/xrp/. Source: about 3 years ago

Bitstamp’s withdrawal fees for crypto are high for some coins however XRP is only 0.2 XRP to withdraw. Source: about 3 years ago