Wheelchair lifts are designed to accommodate a single rider with a wheelchair or scooter, and are generally rated for 750lb maximum weight capacity. Some Commercial vertical platform lifts can travel up to 14’, but most are designed to travel less than 60”, unenclosed. Higher lifts need to be installed in a shaft, similar to an elevator. Wheelchair lifts have constant pressure controls.
Elevators are designed for multiple riders, and usually have much higher weight capacity and can travel any height. Elevators have fully automatic controls and doors. Elevators will cost significantly more than wheelchair lifts.
Both will likely need to be installed by a Certified Elevator Technician or Mechanic for commercial installations. Check with your local permit office to verify installation requirements.