You can use following tools from the app
a)General Tools
1)Simple Calculator
2)Counter
3)Calendar
4)Age Calculator
5)BMI Calculator

b)Finance Tools
1)GST Calculator
2)Simple Interest
3)Compound Interest
4)Fix Deposit
5)Recurring Deposit
6)Mutual Fund SIP Calculator
7)Mutual Fund Lumpsum Calculator

c)Maths Tools
1)Percentage
2)Statistics(Mean,Median,Range,Standard
Deviation,Standard Error)
3)GCD and LCM