Since PagTotal has been discontinued, only traditional and foreign options remain:

Boku

Boku is one of the first mobile payment platforms and after searching a search engine I saw that Brazilian customers (I do not know if it is your focus) can pay with such a system and so I believe it may be feasible.

Zong

Zong just as Boku was also one of the first systems and I know it is supported in Brazil ( if you click on the link above you will see the market share of each of the cellular companies in Brazil.

Payfone

The Payfone came into the market after the two mentioned above and if I was not mistaken it was used enough to iOS applications (mainly iPhone) but I do not know how many are walking and I also do not know if it is accepted in Brazil.

Note: I used Brazil as a reference because I did not know exactly what market to look for and as this is the largest Portuguese-speaking country I seemed to be more likely to be the same.

PS: I do not know if this question is valid , I think maybe it fits in:

  

Specific practical problems about programming that can be answered.

but I'm not sure.

You probably missed the correct search term: Mobile Payment Gateway .

Here in Brazil does not seem to be a very widespread medium, but abroad, especially for games, is often the only solution for those who do not have an international credit card and do not have options like our BoaCompra.

In a quick search you'll find PayScape , or PayZippy and the VeriFone , among others.

However we can not suggest which one is best for you because who knows the needs is you, the developer and doing it, here, that stack could be closed for being the opinions. / p>     

link

It seems that this gateway resolves, but I have never used it and I do not know about sdk

Hugs.