New to the app world in 2016 is BeSpecular. Available for IOS and Android, BeSpecular allows the user to take a photo and/or ask a question, and receive help from a sighted volunteer. The user benefits from being able to get answers from multiple volunteers; and volunteers get the personal satisfaction of having helped another person!
Users can ask questions using text or voice recognition. They can ask as many questions as they would like, and only first names are used to protect user anonymity.