Do you walk? If you don't, start there.
A study of sedentary, overweight men and women (aged 40 to 65 years) showed they lost body fat and weight when they walked or ran 12 miles a week during an 8-month study, without changing their diet. A control group of non-exercisers all gained weight and fat during the 8-month study."
Do you sit at a desk a lot? You probably have poor posture associated with it. Do any yoga, at all. Literally any program.
Here's one from my favorite online yogi - https://www.youtube.com/watch?v=tAUf7aajBWE
Do you want to lift weights? For $8, one time, you can order Starting Strength by Mark Rippetoe.
This book will teach you how to lift the weights, as well as how to program the lifts, which is twice as much as this app is claiming to do. At 1/12th the price for the first year, 1/24th the second, and 1/36th the third, etc..