A Chicago-based programmer created the app in her living room when working through a tumultuous relationship several years ago.
She realised she was up and down on a daily basis and wanted to track her feelings about the relationship from an objective perspective.
The clever app requires girlfriends to rate how they feel about their significant other on a daily basis as well as recording their feelings.
It then analyses the data and reveals how the user''s feelings fluctuated in comparison to their general outlook on life.
“Being able to see your relationship clearly and objectively is the first step on the path to a happy, healthy, love life - whether it’s with him, with someone else, or on your own for a while,” a major newspaper quoted her as saying.
“Sometimes, we need an objective voice to help us appreciate a good thing or accept something painful. And this app helps us tap into the best voice of all - the one inside ourselves,” she said.
The app warns that it cannot replace ''discussions with a licensed therapist, a best friend or a favourite pet'', but it can certainly provide a fresh point of view.
Users can also share results with trusted friends via email or SMS.
To ensure that the conflicted dater’s answers are not be influenced by their most recent feelings they are not able to look at their own results for a whole fortnight.
When viewed afterwards, developers MercuryApp hope the patterns will have more impact and help provide answers.
“We‘re quick to forget or dismiss past feelings that don’t fi t in with our current mood, which is why seeing larger patterns can give you insight you might not have in the moment,” she added.
Her own results showed that her mood was ''good'' only 39 percent of the time and neutral for the rest.
In the end, she believes that this simple but scientific analysis helped her to end a rocky relationship and move forward for good.