As of 2015, the top three car alarms and remote starts available in the United States are, in order from least to greatest, the Avital, Python and Viper systems, according to Top Ten Reviews. Viper offers better options that includes a phone application that can turn a cellular device into a spare key fob.
All three of the top brands are part of the same company. Directed manufacturers and produces all designs for Python, Viper, Avital and more. Directed is the leading designer in alarm technology. In 2015, Directed released the Smart Start remote technology, which allows a user to program a cellphone to start their car.