Nice idea, but could use some improvement – Nutrition Facts Calculator Review

This app works as descrbed, but could use some improvements. If you make a mistake during entry, there is no way to correct just one number. The modal entry employed only allows you to enter the numbers sequentially, and each time you push the "Next" button, it clears the previous value. Great when entering a new item, but not so good when you need to make a correction. Also, the slider bar seems the wrong tool for the job. Rather than that, why not allow entry of the number of servings?
Review by bellhalla on Nutrition Facts Calculator.