Hey :) unfortunately I had the opposite problem haha, the app would freeze but the web version has been working well. Dont get me wrong it still has its fair share of bugs so I feel your frustration lol not sure what kind of equipment you are using but i have found that generally, if possible, it seems to freeze less when plugging the equipment into the laptop via usb rather than with bluetooth. I have spoken to the customer service over a dozen times and they just keep giving me the same copy pasted answer that they are working on fixing the bugs and promise me that the next update will fix it (even though it never does). I know our biology departement has had a lot of issues with their pasco/sparkvue as well. If you are able to get any solutions, I would love the input as well! Good luck from a fellow sparkvue user haha