EVALARM is an app based emergency planning platform to improve communications in crisis situations among internal and external crisis teams, employees and other parties involved. Threats or hazards that are classified as probable and those hazards that could cause injury, property damage, business disruption or environmental impact are being deployed on the EVALARM Management System. In case of hazardous events like fire, bomb threat, work accidents, technical failure, threats of violence or environmental pollution, EVALARM will help to alert predetermined crisis teams. EVALARM also provides detailed location information on maps, gives instructions, and displays event related contact lists. Other than mobile alerting, the platform covers crisis processes such as evacuation, SOS alarm and crisis tasks. The platform is scalable, cloud based, multilingual and modular in design.