i tested with an ept and a walmart brand test just to see the difference, and there was none! I got the same result with both test. And actually, my line on the walmart brand test was darker!

All pregnancy tests, whether it be dollar store tests or 20 dollar tests, test the exact same hormone and are JUST as reliable. The only difference is the way that you read the test (digital? plus sign? lines?), and how much of the hormone they detect (early response ones can detect pregnancy early while typical pregnancy tests detect it at the time of your missed period).