For these reasons, the investigators have developed a mobile application to aid in the management of GDM. This is carried out with a company called Jana Care. Jana Care has developed the Habits Program (http://www.habitsprogram.com), a lifestyle coaching program which is available on Apple App Store and Google Play, two of the most commonly used smartphone app platforms. This was developed based on the Diabetes Prevention Program and Look-AHEAD Trial. It targets behavioral change by providing a personalized diabetes management program which consists of 12 interactive video lessons, diet, physical activity and weight tracking tools, interactive messaging platform with the lifestyle coaches, and daily short messaging tips. It interfaces with the Aina device, a novel hardware sensor that plugs into any smartphone and can be used to measure blood glucose. The glucose readings measured are automatically transferred to the Habits Program application. It is able to generate weekly reports for patients to assess their progress.