Don’t understand how you could have an Android phone and not be able to access the google play store? Do you mean that you can’t access it from inside the Blink app, or you can’t access it using the icon for the play store on your phone? Doesn’t your phone automatically tell you when you have updates to install? Version 3.3 was released a year ago (I am currently running Version 18.104.22.168 but I think that’s a beta version), so are all of your apps more than a year out of date?
If for some reason you can’t access the play store on your phone, you can go to it directly on a desktop or laptop computer at play.google.com and update your phone apps (assuming both your phone and your computer are linked to the same google account).