Anyone can crack open an IPA or uncork a bottle of rosé. But a host really looking to impress guests might want to check out Mixology, the free app with more than 7,900 drink recipes. It can even be used to look up nearby liquor stores, just in case you’re missing an ingredient or two for your Negronis or caipirinhas. The paid version of the app, Mixologist, costs 99 cents but comes with extra features and no ads.