iOS Permission description limit

Question

I want to know if is there any limit to define a message for iOS Permission description on info.plist.

I've searched for it but I didn't found nothing about.

Answer 1

There is no specified text limit for Requesting Permission and a plist can be of arbitrary length. Also the description scrolls the text automatically.

But it is suggested to keep it simple and short in Human Interface Guidelines.

Explain why your app needs the information. Provide custom text (known as a purpose string or usage description string) for display in the system's permission request alert, and include an example. Keep the text short and specific, use sentence case, and be polite so people don't feel pressured. There’s no need to include your app name—the system already identifies your app.