A regular website audit is not built for an online store. Stores have product pages, category pages, filter links, sold-out items, near-copies of the same product in different sizes or colors, and more complex schema. A general audit usually misses most of that.
We built this audit for ecommerce only. We look at how your product pages are set up, whether your category pages have enough words and headings to rank, whether your canonical tags handle near-copies, and whether your product schema is there for rich results (like star ratings and prices in Google).
The automated check reads the same number of pages for every store. The price depends on how many products you sell, because the hand review takes longer on a bigger store with more product types and templates to look through. You pick your store size when you check out, so you know the price up front.