Postgres for mobile website?

Hi,

 

I have a website using Postgres database. Now I need to develop a mobile website, what should I do?

 

Use the Postgres database or copy the information of the database to a SQLite database? Postgres isn't heavy to a mobile website?

 

The website is update 2 times month. I can easly sincronize the databases Postgres to SQLite. What do you think about this solution?

 

Best Regards.