Certain survey applications have eligibility requirements that are based on location or demographics, which may restrict the amount of surveys that are available online sattakingto certain users. - Privacy Concerns: When using these apps to complete surveys, users might be hesitant to disclose personal information. Many people in India have had success using survey apps to make money. Ritu Sharma is a Mumbai-based college student who has used survey apps to supplement her income while she studies.