Why not cache!?

Why not cache!?

Hi there

Why is every page of the Zoho Books iOS app have to constantly access the internet? Can you be like FreshBooks and cache the details once during a session? I have dodgy internet when I travel but I would open the app, wait for caching, then goto invoices tab, wait for caching, then click add invoice, wait for caching, then click add customer, wait for caching, then click add item, wait for caching.....take about 10 minutes to make one simple invoice since you constantly have to acces internet on every button push.

Can you please cache the entire info just once on app-open?