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my2cents is a mobile app to share opinions on products. It uses the mobile phone’s camera to read the product’s bar

code and capture the product’s GTIN. The GTIN is used for querying a web service for additional product information related to the scanned product bar code (e.g. product name, manufacturer and product image). The GTIN is also used to query for existing comments from other users which are related to the scanned product. This information allows the customer to find what other people are saying about a given product. It might also help to make better buying decisions.

Visit to download the app and read what products people are commenting on.



my2cents allows consumers to:

  • Identify a product,
  • Access comments about this product from other consumers, and
  • Post own comments using the microblogging service Twitter.

Selected Publications