Both story points and hours are supported at Yodiz. Default setting is for "Story Points". To change it, follow these steps

1. From settings icon, select "Project Settings"
2. On left menu choose "Estimation Method"
3. Now you can select "Points" or "Hours".
   
4. If you select "Points" a drop down appears with 4 options
1. Linear   (0, 1, 2, 3, 4, 5)
2. Fibonacci (0, 1, 2, 3, 5, 8)
3. Scale-100 (0, 0.5, 1, 2, 3, 5, 8, 13, 20, 40, 100)
4. T-Shirt size ( XS, S, M, L, XL, XXL )
   
5. Select any of above Estimation methods for story points.
   

   
   Example screen shown below.