weightloss

so i started my weightloss journey in dec.. the 26th to be exact lol.. and im doing good so far with the diet.. low carb high protien.. basically keto!! ive lost 15lbs so far and thats with taking a month off bcuz of my knee.. i ended up get the cortisone shot again.. but the excersices are getting boring.. i walk every day which i wont stop that but for my abs arms and butt workouts i need something different.. i have the app daily arm workout.. i have the abs and butt one too.. but theyre getting boring.. ive download a few and they put ads on my phone so i just delete them.. does anyone know of any good free ad less workout apps???.. and if anyone has the pacer app or myfitnesspal add me so we can motivate each other..