The "world's first smart menstruation cup" links with a phone app to provide women with information about their periods (+ movie).

The silicone Looncup collects menstrual flow as an alternative to disposable tampons or sanitary towels, similar to other reusable devices such as Mooncup.

However, Looncup wirelessly connects to a smartphone app to notify the user how close to its 25-millilitre capacity it is, as well as track the periodic cycle and give feedback about health. Updates can also be displayed on an Apple Watch.

"A Looncup can do so much more than a tampon, pad, or even a regular menstrual cup," said the product's developer Loon Lab. "It's the world's first smart menstruation cup, and it tells you how full it is, and when it's time to refresh."

The app acts as a diary, recording the different stages of the menstrual cycle each month. Using information collected over time, it can then send the user a message to remind when their period is coming up.

It also identifies and tracks fluid colour, which can apparently indicate problems like stress or poor sleep.

The sensor is embedded into the base of the silicone cup, which features a teet on the end for easy application and removal.

Loon Lab lists a range of qualities that give menstrual cups advantages over disposable products, including non-irritant, reusable, odourless and hypoallergenic.

The company is currently developing the sensor's capabilities to check for health issues that can be detected from menstrual flow, like abnormal iron and blood sugar levels.

"Menstrual fluid can tell us so much," said Loon Lab. "Every woman is unique, and we are working on several different Looncup types. For example, we'll be able to check anaemia with hemoglobin, glucose for people suffering from diabetes, and cholesterol for people suffering from hyperpiesia."

The device weighs 19 grams and the battery lasts approximately for six months, depending on the usage pattern.

A Kickstarter campaign launched to raise funds for developing and producing the device has surpassed its $50,000 (£33,000) target with 22 days to go until it ends.

"We believe that each tiny Looncup can make a huge impact on the lives of women around the world," said Loon Lab.

Also aiming to solve period problems, Swedish designer Katarina Hornwall created a necklace pendant that can be used to carry emergency tampons.