Would you pay $32 a month to use Spotify?
Because that would be the equivalent here in Brazil if I had to pay 9.99 USD in Brazilian Real.
However, I pay 16.99 BRL, equivalent to 3 USD.
If Spotify charged exactly 9.99 USD outside the US, here in Brazil we would have to pay 55 BRL.
It would never work.
Not everyone earns a US salary - or equivalent.
So, if you want to have any chance of selling to countries that suffer currency devaluation, you need to implement PPP (Purchasing power parity).
Before, I was focusing on US/CA/Europe. Now, I'm selling to customers from countries that I didn't imagine would buy from me.
Today I made a sale to Tunisia.
Credits to @codetohack for spreading the word.
P.S. If you want to learn with me I share experiences every day as Indie Hacker on my Twitter - https://twitter.com/meydjer. Follow me.