A lift system has a back panel and a seat panel to provide a seat for a user. The back panel is slidably mounted on a support column via slider so that the back panel can be moved up and down to adjust the seat height. The seat panel can be flipped back to accommodate a user in a standing posture. With the support column, the lift system can be attached to a wheeled frame, a pole, a rotatable arm, a wall or a ceiling depending on the need of the user.