In article >, sms
> wrote:

> Still wondering why iOS doesn't allow the Bluetooth Serial Port Profile
> (SPP).

because spp is obsolete.

bluetooth 4/le is *much* easier to use, both for users and developers,
as well as being faster and more reliable.

> SPP is used by a huge number of industrial devices which can't
> have apps on iOS which is a shame.

actually, very few.

and if those manufacturers updated their hardware to bluetooth le, they
likely wouldn't need to write an app since bluetooth le has numerous
standard characteristics that are *already* natively supported by ios.

as i said, spp is obsolete.