Iphone App and Website online not running great

Hi, its been quite some time now that there are some bugs with the iPhone app and now I notice bugs also on the website.  Things like when I click on adding a new task, the actual place where I would type the task is not visible on my computer screen, and I have to click out and reopen several times before I am able.  On the iPhone app, it just won't scroll down or freezes up completely.  Please advise!  I love this app and it used to work so smoothly!  Thank you in advance for your help!  Thank you!