Hello my name is Matheus Bedoni, I'm interested in developing your app, I've been working with android development for three years and I'm starting now at Freelancer.com, so please look at my portfolio here.
If you are interested in my profile, please send me an msg it will be a pleasure for me to create this app for you.
I have already done apps for construction, agriculture, lawyers, restaurants and it will be a big challenge for me to create a to-do list app, which I will certainly do very well.
I saw that you said that the limit would be 150 $, I'll do even better, I do for 88 $ for you