Best App Stucture & Importance of Dividing

Pushing everything into one app? It works for small projects, but as the codebase becomes large it becomes messy.
Best way to avoid that is by:

dividing apps by functionality like:
\accounts
\products
\posts, etc...

each app contains different functionality and if one goes wrong while updates or anything, other apps won't be disturbed...

Dividing app structure makes:

• Easier scaling and Organized code.
• Cleaner codebase
• Reusability across projects.

A well structured app layout saves time when project grows..