Focus T25 was developed by the creator of Insanity, Shaun T. It is a 25 minute a day, 5 day a week program that gets RESULTS! I have watched many of my challengers get fantastic results in just 10 weeks. I was so excited to hear that this program was coming out right after the birth of my 4th baby. With a 7 year old, 5 year old, 2 year old and newborn, I was pretty certain time would be limited. I KNEW I could manage 25 minutes a day. So that is exactly what I did. There are 2 phases. Alpha is all cardio, core and balance. There is no equipment needed. The Beta phase steps it up by adding in strength training (my favorite). And then there is a 3rd phase- Gamma- that you can purchase separate when you are ready.
There are great modifications in T25 which make it manageable for almost any fitness level.