SDI is a top app development & web design company located in Silicon Valley, California. We welcome businesses of all sizes, from small businesses to large corporate giants. Our team has delivered complex projects over the last 15 years. We build your project at an affordable cost and deliver projects on time. During the entire life-cycle of the project, we share regular updates of milestones achieved. Our tech teamwork on some of the best project management tools and provide our clients with a login to track their project progress. On project completion, we deliver the source code to our clients, ensuring you are the 100% owner of your app/website. SDI provides superior quality of Android, iPhone, and iPad app development--hire your developer today!