Imagine, as a homestay guest, controlling your entire homestay experience from the palm of your hand with your smart phone. GuestO allows homestay guests to reserve their room, order room service, request conference room and gym reservations, schedule wake-up calls and operate room appliances from the convenience of his or her smart phone through the usage of a QR Code located in the room. The days of making multiple telephone calls and waiting for a timely response are over. GuestO simplifies the entire guest/homestay experience and allows guests to focus on their enjoyment and relaxation. GuestO is easy to install, integrates with PMS/POS interfaces, gives full control of data analytics and is voice enabled for a rich guest experience.