Hi,
I see more and more apps get you to use your mobile number for signup.
For example, when you sign up to Whatsapp, all it asks for is your mobile number, which is your unique ID.
When you open the app for the first time, Whatsapp accesses all of the contacts in your phonebook and checks which of those contacts are already using Whatsapp, by comparing your contact's numbers with the accounts on the Whatsapp server. If they find one of your contacts who is also on Whatsapp, they place your contact in your Whatsapp Favourites (Whatsapp contacts)
QUESTIONS
01 - how often would an app like this need to check / sync your contacts with their accounts database?
02 - has anyone ever come across a good article on signing up with mobile, from a developer point of view?
Thanks in advance for your help.
I see more and more apps get you to use your mobile number for signup.
For example, when you sign up to Whatsapp, all it asks for is your mobile number, which is your unique ID.
When you open the app for the first time, Whatsapp accesses all of the contacts in your phonebook and checks which of those contacts are already using Whatsapp, by comparing your contact's numbers with the accounts on the Whatsapp server. If they find one of your contacts who is also on Whatsapp, they place your contact in your Whatsapp Favourites (Whatsapp contacts)
QUESTIONS
01 - how often would an app like this need to check / sync your contacts with their accounts database?
02 - has anyone ever come across a good article on signing up with mobile, from a developer point of view?
Thanks in advance for your help.