Kindly Yarn review for Sumtracker Inventory Manager

Brilliant app. I've been using it for about 6 months and can genuinely say it's saved me hours. I sell a lot of stock in bundles, on both Shopify and Etsy. Before using SumTracker I was trying to download sales reports and updating stock manually which was time consuming, but at Christmas when sales were high, I'd still run out of stock partway through the day leading to disappointed customers. SumTracker updates both channels with accurate stock in minutes. It was easy to set up and use. Customer service when I've needed it have been really knowledgeable and supportive.