Stockeo

Very simple and stable app. Does exactly what it needs to do without all the fluffy features that nobody uses. I manage 7 Shopify websites and use Exporteo, Fulfilleo, and Stockeo for all of them. With a little help from Lukasz and Dominik at Solvenium to tweak a bit of the code we have exactly what we need. They are very responsive and we are grateful for their expertise.