Simply Piano does have one free course ( Piano Basics ), and after you've completed it, you will be prompted to pay for a subscription before you can access more advanced material. Furthermore, before you purchase the paid version of the app, you can experiment with a free seven day trial.

As for subscription options, Simply Piano offers a 7-day free trial so you can try it before you buy it. After that, it isR$149.99 per year,R$89.99 for six months, orR$59.99 for three months.