I have just built a tool in order to help you all find which apps a Shopify store is using.
It can be a really convenient tool if you would like to replicate a feature that you have seen in another store and you don't know how it has been done.
The Shopify App store keeps updating regularly and I am updating Which Shopify Apps periodically. As a result, if it doesn't detect some apps, I am sorry, but they will be taken into account later.
Furthermore, it is a tool that helps you detect apps that are used in the frontend. It is just not possible to see which apps are being used in the backend, such as Oberlo for example.
However, I think that so far I can help a lot of people to grow their stores and ride higher.
Thank you a lot I am glad to listen to suggestions :)