First aid is crucial in emergencies as it can save lives and prevent further harm. Proper first aid training equips individuals with the necessary skills to respond effectively in various situations, such as injuries, cardiac arrests, or choking incidents. First aid courses cover a range of topics, including CPR, wound care, splinting, and basic life support techniques. The app also provides a short introduction for emergencies, a chat function for unclear but non-urgent situations, and a call function for serious emergencies.