doctorSIM provides users with mobile phone plan recommendations. The service searches hundreds of thousands of combination's to calculate total savings. Currently serving Spain and LatinAmerica and its 250 million mobile subscriber population, doctorSIM has identified potential savings in excess of 300,000,000 EUR, thanks to its mobile optimization savings algorithm. Tightly coupled is the Cell Phone Unlock service, empowering worldwide users, MVNOs and wholesave distributors to maximize phone usage and number portability freedom! Additionally providing Telecom Expense Management (TEM) for companies with over 5,000 phone lines, as well as mobile retention and price simulation software for Mobile Virtual Operator Networks (MVNOs) and retail distributors. New as of 2017, you can now Topup any prepaid phone worldwide with transparent, low cost fees and top notch customer service!
1445 Cambridge Street, Cambridge, MA 02139, USA
Avenida de Brasil, 17, 28020 Madrid, Madrid, Spain
90 Paul Street, London EC2A, UK
Providencia 229, Providencia, Región Metropolitana, Chile