Hi @fantasy247,
Thanks for your hunt. Sadly enough I can not approve it as MX Player is one of the, if not the, most popular video players for mobile devices. With more than 500 million installs and 6 million reviews on the Play Store it is difficult to call MX Player a not yet mainstream app.
Additionally, here at Steemhunt we only accept links for the major official app stores. Also when a product has a main, an own website we prefer that as the product link.
I have de-listed your hunt, as per Steemhunt posting guidelines:
6. Post "New" Products
Steemhunt is about cool "new" products. Please make sure that your hunt is something recently introduced. If the product is not new, there must be a strong reason to post. For example, the product must be substantially updated or upgraded in a way that has a positive effect on users. Even though the set period of time to define whether it is newly launched is subjective, the moderators may ask if the product is widely considered to be a “new product” (or substantially updated).