Yes and more than the App its the humans you have to trust. In any case opinion of others backed by citations or not, should be your starting point. It gives you a direction, and once your homework is done you have the choice to thank them :)
I have finished some sections and update has not been provided at that time,after that I need to go through once again later on an update is available......?
Hi Pavan, the descripttion for the app says it's updated for FinAct2017. In case not so then your question can be best answered by creators of the app who can be contacted from Settings -- Contact Us.