Setapp is the most popular Mac OS Apps provider by subscription. Many users consider it as the best YouTube Downloader or the best YouTube to MP3 converter. You can use the 198 Apps in its library for a monthly fee, that includes: iStat Menus、Bartender、CleanMyMac X、Ulysses、BetterZip、iMazing、MoneyWiz、XMind、2Do、InBoard and more. And recently, Setapp also released a family suite subscription, that is at $15/month, very worth to subscribe it. Don’t miss it out.