How much can we challenge our same friend in sololearn app

Answer 1

There's no limit for challenging the same person, until it gets illegal:

If either of you wins/loses all the challenges between yourselves, it will be considered illegal (as if you're using a fake account) and you'll get yourself banned.

Answer 2

ohh is that so

Answer 3

cause it is with my sister's account too

Answer 4

she challenges me and I win them most often.....

Answer 5

so I would have been banned

Answer 6

thank @dev

Answer 7

thanks @dev