Can I register more than once using the same email address or phone number? 01 October 2020 17:11 Updated You cannot register to more than one account using the same email address or phone number. Related articles Can I register my child(ren) under 16 age with Dr. iQ? How do I register on Dr. iQ ? The postcode I entered does not show the correct/exact address, what should I do? I have a learning difficulty, What can you provide as an alternative to the app? How do I request a linkage key on the app?