After MyPlate destroyed their user interface I went looking for a new weight tracker and found this. Its great; does what it says on the tin and has a bunch of different ways to track weight and options for milestones etc. Best part is it talks to Apple Health and pulled in all my data from the past couple years and keeps my tracking in other activity apps up to date. I bought the premium version and it was worth every penny.
Cazorp. about Happy Scale: Simple Weight Loss Tracker with Daily Moving Average Trend Line, v4.4.2