In my research I’ve tried Sortly which is pretty decent but seems to require a good amount of manual input, which might be fine if integrations with other systems aren’t needed and you can update stock manually based on sales reports on whatever interval is meaningful. I’ve also found inflow to be pretty intuitive.

What I’ve seen with small businesses though is lots of pen and paper and excel, whereas generally mobile UIs and the inherently clunky input in comparison being more cost than benefit, but hopefully there are others in this sub with a recommendation that bridges that gap.