OkCupid is a popular dating site that was recently accused of hiding matches in order to make users upgrade to a premium account. A study found that OkCupid would show different matches to different user accounts and hide matches from others, depending on which type of account they had.
OkCupid does hide potential matches if you use their app for free. When searching for potential matches on OkCupid, only about 10% are available for free members. This means that if you want more you need an upgraded account which costs money.
The company offers a free service, but it’s limited in terms of features and options. In order to unlock all the features, you have to upgrade your account and pay monthly.