POS systems are complex and need to have very low latency. On top of that, there are many different types of registers that can be used. On top of that, since you are dealing with the everyday transactions of a business, in order to ship your product you need to be damn sure it works as expected. This is going to lead to very long and expensive development times.
The investment for the stores that would likely be excited to be apart of this is too high for those stores. That software isn't free when they need to get new hardware to support all of the systems that need to integrated so that they can be apart of the search.
POS systems are complex and need to have very low latency. On top of that, there are many different types of registers that can be used. On top of that, since you are dealing with the everyday transactions of a business, in order to ship your product you need to be damn sure it works as expected. This is going to lead to very long and expensive development times.
The investment for the stores that would likely be excited to be apart of this is too high for those stores. That software isn't free when they need to get new hardware to support all of the systems that need to integrated so that they can be apart of the search.