UbarTab

Absolutely spectacular, simply app that we use daily. Support was absolutely incredible with response time and even added functionality that we need. We are actually using this not for a bar tab but for our stores guitar technician to help keep track of orders, so there is more than one use of just bar tabs - great for any application that you need to save carts for any amount of time!!

It seems like this app is not working with the new version of Shopify POS App. It needs to be updated

It's great! Not too deep. Simple interface and well thought out. Even my Jpn staff can use it. No documentation though so not sure about a few things about Tab Update".

We're a fabric store and we use the app to cut fabric at one register and save the customer's cart. They can keep shopping and then checkout at another register.
I just wish that the app would automatically release inventory when loading a cart (Instead of offering you the choice to keep the hold). This might not matter for some use cases and probably doesn't for restaurants, but for a retail ...

This app helps to plug a big hole in Shopify. The in person POS setup for Shopify doesn't manage the typical way a bar or restaurant does sales, with payment at the end of the night (which tends to increase tips if we're doing our job right). We considered abandoning Shopify, despite the online sales presence, because of this.
This app allows us to manage tabs - it takes a few extra clicks, but ...