Are you aware of how does your actual Sprint Burndown Chart look? Does it often happen that your team miss a valuable data of time allocation which is needed to finish project and estimate time and costs of the next ones? Without this data you do not know exactly where the time goes. You can not estimate, just predict and guess how much timwe and money will be needed for next projects. The solution for this type of problem is for sure a time tracking software that can be integrated with project management app you actually use.