what is correct format of bundle identifier in iOS?

Question

I have four bundle identifier

1. com.company.appname
2. com.appname
3. appname
4. com.company-name.app-name

Please help me to find out correct bundle identifier,
Please tell me which is correct.

Boaster

As per my view 3rd is wrong.. others are proper... I prefer first one.. – Syconium

all other are incorrect format? – Boaster

Nope. I said dear... others are proper. I prefer fitst one and first one is standard format.. you can use '-' but is not standard way. – Syconium

Answer 1

All the formats which you have mentioned are correct and can be used as bundle identifier. But the standard format followed is com.company.appname (reverse domain name).

Tuberculin

Can we use org as a prefix instead of com – Keverne

Yes, you could. – Tuberculin

And then Apple comes along and just adds "iCloud" (iCloud.com.company.appname), and completely destroys this beautiful all lower case identifier. (when adding CloudKit, default container name) 🙈 – Winstead

@Winstead Yeah. Now I'm not sure whether to go lowercase or CamelCase for my app name. – Eschew

Answer 2

The First type is the correct one.It is a standard to use the reverse domain name as the bundle identifier along with app name. For example com.google.gmail,com.fb.messanger

Shem

Answer 3

The Bundle ID can only contain alphanumeric characters, hyphens, and periods. It can't end on a period.

This regexp should be correct: .[\w\.-]+[\w-]

Acrefoot

Answer 4

all you need is device registered at Apple development program, if you have no device registered simply connect your iphone and register it through xcode.

Ratchet