We know that some of our iOS users have had issues with using bold and italics lately, where they either will not switch on correctly or they can't be turned off.
Please rest assured that we are aware of the bug and are working on a way to fix this for you!
For now we recommend writing on the website if you need to use bold or italics, or just leaving your text unformatted for now on iOS.
We hope to have this resolved quickly so your patience is very much appreciated!
The Wattpad Team