Point of Sale

They just lost me as a customer by forcing an update which makes it mandatory for customers to have both phone and email when doing a delivery order. They made up a story about it being for security however the website rules are either a phone or email and it works just fine. They also suggested I make up email addresses to get past a screen that stops you proceeding which I am going to refer to the ICO as that's essentially using fake data , tut tut Shopify! They are looking at their developments in a completely isolated manner and not considering all cohorts. We've lost thousands this week as it's Mother's day and we can't see a high % of our customers. They need to get a handle on their rogue Devs.

The app itself is ok as long as you stick to the recommended hardware, or it just won't work! (Basically stick to American based Apple products).
My issue is the features it allows in the free version are lacking, that, in retail certain abilities are considered standard. For example the ability to make an exchange on a sale and the use of existing discount codes from the website end (i can tick the box but unless I use pro it doesn't feed it through).
I don't want to pay an extra £80 just for this option, so I have to the calculations manually and adjust stock manually. I don't need multiple outlets or more than 5 staff I can barely afford myself!
I understand the software is different than the e-commerce software, so billing is separate, but someone really needs to look at the needs vs extras because what I need vs what I want are two very different options. Maybe allow a system of choose what you want and charge accordingly... better yet, just allow me to do exchanges and use discount codes on the POS.

PSA: When you enter in an address to collect sales tax, they do not have the correct tax rate system. I entered my correct address, which on the government website has a 3.5% local sales tax rate, but because Shopify POS is super behind, they use a "Basic System" to determine the tax rate, which is 4% lower than it should have been, leaving ME to pay the remaining taxes out of pocket. I am not sure how this app is even legal if they cant even provide the correct tax rate!