This sounds crazy to me! You've probably seen this, but this site lists some reasons that a review might take longer. But I've never heard of it taking months. Source: over 1 year ago

I think the real key is that Apple has recognized that App Store delays are a problem and has taken steps to quantifiably improve the situation. See https://appreviewtimes.com/. Anecdotally, the first version of one of my Apps was approved in < 8 hours. On another, more gray area app, it took ~1.5 weeks. Gone are the days of 4 week update delays. I’ve found that Apple’s release process has identified useful... - Source: Hacker News / over 2 years ago

90% of apps on the apple app store are reviewed and approved within 48 hours. Source: almost 3 years ago

It's not uncommon for an app to take a bit longer on the first submit. You can check reported app review times here. Source: almost 3 years ago

Try shopkpi.com, they provide pretty good store and product data across multiple stores. I hope it can help you in researching the niche. Source: about 1 year ago

Our business has been in touch with how a website is doing compared to a vast majority of other websites as a part of the business in Shopgram. The main tool which we had used before was Alexa rankings, Although not perfect, it gave us a quick overview of how a website is doing in a larger picture, but as you may have heard, it's closing soon. Source: over 2 years ago

Someone posted this in the Printful subreddit..... And I don't like it. Https://shopgram.io/. Source: over 2 years ago

We built a tool called Shopgram that lets you browse through products sold across Shopify stores and even see who their suppliers are. Source: over 2 years ago

Hi there again, back with our part 2 of Shopify wrapped in 2021 from Shopgram. Source: over 2 years ago