Phone

https://www.bellingcat.com/resources/how-tos/2019/04/08/using-phone-contact-book-apps-for-digital-research/

# GetContact
# Free, need SMS requirement (burner) + email
# Banned in some countries but works good
# List one possible name

# TrueCaller
# Free, need Google or Microsoft account
# Works good, list one possible name and tags

# CallApp
# Free, need Google or Microsoft account OR SMS
# Works good, lists comments from users about number, gives a 
# reliability score to number, shows how often the number was searched

# Dalily
# No requirements, free
# Focused only on Arabic-speaking countries
# Can search by either name or number, and also will provide all contact book
# information (email, etc), not just name and number 

# Eyecon
# Free, SMS requirement
# Photograph and one name for the contact

# Viewcaller / Showcaller
# No requirements, free
# Only one name, very basic details

# When you have a phone number, you can use some messaging websites/applications
# If the target is registered, it can provides additional informations

# /!\ Some applications might tell the target you've reached them /!\

https://medium.com/@Ginger_T/how-can-we-use-messenger-apps-in-osint-682cbc634f

# Profile picture and details from Facebook bio

# If you add a contact on Apple it wil tell you if the target can use Facetime
# If so, you know the target is using an Apple Product

# Profile Picture, Nickname, Name, BIO & last seen.
# Will show when someone is on-line.

# Display, username, profile picture.
# It will provide the name as per the server not your contacts
# Also location information of where they say they are from along with a date of birth.

# User's profile photo, username and bio
# From the desktop app, you can see previous photos

# Profile picture and the name on Strava server not in your contacts.
# Will also show the location they are from if this field has been completed and Bio info.

# Profile picture, last seen, status and about me