Statistics from Altmetric.com
Smartphone use has rapidly increased, and by 2020, there will be an estimated 6.1 billion Internet-enabled mobile phone users worldwide.1 This phenomenon has created new opportunities for the public health and medical communities, which have used smartphones to collect health information, conduct surveillance and promote behaviour changes, such as smoking cessation.2–4 The popularity of smartphones has also attracted leading American cigarette manufacturers Altria and Reynolds American, who have begun offering digital cigarette coupons redeemable using smartphones.
Altria has introduced the MHQ App, which offers two coupons per week. Using the smartphone's global positioning system, the app identifies nearby tobacco retailers that accept Marlboro digital coupons (figure 1A). The app user selects a retailer for redemption, and a digital coupon (eg, ‘$1.50 off one pack’) …
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