Okay for phone printing but sizing is a pain in the....

I had a very awesome friend send a shipping label printer to me, but I can only use that one with my laptop or a computer.  Needless to say, I still wanted something that could print from my phone, where I am accessing most of my labels.  The directions included in the box for Bluetooth printing are kind of ridiculous, I mean there should be no need to send your label to a social media app. Major let down on that part. Now getting the label to fully fit the label paper i have not completely succeeded at yet. I have successfully printed labels that are able to be scanned by all shipping agencies, but they still aren't the size they should be. And I have played with certain apps i used for my other label printer to correct the size. I even tried their social media app share crazy directions in their booklet they send.  I did not have all day to figure this out so as long as my labels are scanning, I'm not complaining too much.  Also highly discounted from the retail price, and came with 100 free labels so those three pros are the main reasons I do still give this 4 stars.  Would be 5 if it was not so darn complicated to size and I didn't have this hard of a time with the other label printer with sizing. I still had to do some crazy editing, but didn't take as much time and effort on the other, yet the Bluetooth capability is what I really needed to speed up my process. Will try playing with it more to get the correct size, but if I find another brand on sale, I'm willing to try it just to compare, and see if there's an app for editing certain things, and not a suggestion to open social media.  That part blows my mind but I amgetting my labels printed so thanks for the discount but please provide some more details or create a better app to edit and print from.  Seller and manufacturer took the cheapest route in my opinion and for retail price, I have to knock this down to 3 stars. I would be very upset spending even over $100 with how much is required to print a label.