or you don't do, you are getting kusmization. i'll end this. >> i went to the next one.one. >> you can set it to a break in wean. you can define that. what i like personally it shows your calories you burn, i like that feedback. we just burned 40 calories. and you get medals and goals. one of the other things i wanted to point out is that -- this is the free version i just showed you, there is also a premium version, that's the paid for, which costs $2.99 a month or $19 a year for a full subscription. one of the things they have is low impact exercises. thihi app is designed to fit all ranges, not just the hard core workout person. they have just added this whole low impact grouping. that's available under the premium as well as ask a trainer. if you have a question about a workout or an exercise, are you doing it right, are you stretching the right muscle, you can get access to a trainer. and then the premium version is ad free. we'll see how they do on shark tank. >> have you tried it? >> yeah, i have. i think it is great. this