Fiori App vs SAPUI5 App

Hi,

I know that this topic has been discussed in detail here but I just need one small information. Recently I was informed by a friend who has been working in SAPUI5/Fiori for a long time that the main difference between a Fiori App and SAPUI5 App is that Fiori App is developed and delivered to customers by SAP., wheres SAPUI5 APP is created by customers. It's like standard report vs custom report. So we, as developer can never create a Fiori App, even if we follow all the guidelines(like responsiveness, role-based).

No matter what I do, it'll be called a SAPUI5 App.

But if I search in google I can find multiple tutorials on how to create custom Fiori App.

So, without going into all technicality, my question is simple: can I create a SAP Fiori App from scratch ?

I'll be much obliged if someone can clarify my doubt.

Thanks,

Sarif