Is there an app for that???

So I just took my 3hr test today..... Not sure I'm going to pass or fail but I'm looking into becoming more informed. This is my 4th pregnancy and I've not been a GD before. So my question is is there any apps that you guys like that keep track of levels, carbs ect that you really like?? Please share if so! And if not then how are you guys keeping track otherwise. Thanks so much for your time