MedXer is a free iPhone app by Rxperius Inc, falling under the Education & Reference category with a focus on Medicine. This app allows users to share their experiences with prescription medicines through monthly surveys. Surveys are quick, taking 2-3 minutes each, and consist of multiple-choice questions.

Users can earn money by taking surveys on their medicines. Earn $5 each month and an additional $10 bonus for every 3 consecutive surveys per medicine. The app allows users to earn up to $100 per calendar year for each medicine, with a maximum potential of $300 annually for three medicines. MedXer ensures easy access to cash rewards via Venmo withinhours upon completing surveys.