Ask HN: Please review my app in iTunes: TipEasy (itunes.apple.com)

It's really is a good app but only one person reviewed it. It is a very nice review. My apps are languishing due to no reviews. It's ok to be honest. I want to provide real value. Here are some promo codes: RXTTA369346Y HAP447NPT4K6 Y6Y7TENFMJ7R KJLFFP3F7XY9 6E4AHMHW6AXP

PS How does one get reviews for apps - I have 19 in the App store and little to none reviews. They are selling albeit slowly.