GD: Price Updater Pro

I am genuinely confused what this app actually does? I was looking for an app that can make bulk changes to prices through SKU matching - basically me uploading an updated price list (excel) from our suppliers that shows SKUs and prices, the app matching the SKUs on the excel spreadsheet with that the SKUs on my Shopify store and automatically updating it all in bulk.

This app does none of that. It wants me to export the prices from my entire Shopify store, then manually update new prices into the exported sheet and then import that back into the app?? I might as well use the bulk product edit feature on Shopify and update my price SKU by SKU then.