Fetcher is one of Jungle Scout's sister apps that is centered around analyzing your sales, costs and profitability.
We have just released a new feature set called Sales Analytics inside Jungle Scout and it is available to anyone with a Jungle Scout subscription at no extra cost. The functionality of Sales Analytics is similar to Fetcher, but not exactly the same.
For now, Sales Analytics is an alternative to Fetcher. We are working on adding more functionality to Sales Analytics in the future so stay tuned!