You can use a letter twice in a row, as long as you form a valid word with it. To do so, after selecting the letter for the first time, without taking your finger off the screen, swipe through the same letter to be able to select it again.
You can use a letter twice in a row, as long as you form a valid word with it. To do so, after selecting the letter for the first time, without taking your finger off the screen, swipe through the same letter to be able to select it again.