Alignment to hard currency over long period of time.
In currencies with high inflation it’s useless to compare spending over years and even month due to wrong presentation of final data. For example currency AAA had inflation of 3 times over period of 1 year. When I see January report, I see my spending for food for example equivalent to 600$. When I look for December I see spending 200$. Does it mean I saved 400$? No! It means comparing expenses in high inflation currencies is wrong.
What I offer: take historical exchange rates from central banks sites, or yahoo, whatsoever and add option to make reports converted to hard currency like $ to see correct graph over long period of times.