Hey Priya !
Sololearn pro is offered a free trial for about 3 days to let people know the experience with it .
Pro offers you
-> No ads
-> Daily goals
-> Your nearby learners
-> You can able to find who are visiting your profile !!
Free trial won't expires if you didn't linked your bank account . So, peacefully drag the navigation bar & there you find sololearn pro !
As you go to buy some clothes there is a facility for trialling cloth if you like it then you buy it with money.
Here in sl you get the same facility to trial it for 3 days if you like it then you have to buy it by money.