Muyang is a service APP mainly aimed at the elderly in the intelligent information society. Based on the travel, life and health needs of the contemporary elderly, we should provide a more convenient way to realize it, so that the elderly can enjoy the convenience brought by information technology equally, conveniently and safely. At the same time, add family terminals to link with the elderly to realize real-time monitoring and communication of the elderly in the family, and intervene in the inconvenience and accidents of the elderly in life and travel. Twilight Yang is committed to building the theme of "making aging softer and making the years quieter" to make the fast-developing technological society more friendly to the elderly. "Twilight sun" means "twilight sun", which is a metaphor for the middle-aged and elderly people in the middle of the year. In this name, the positioning of the product is determined, which is convenient for the elderly who have a "digital divide" with the contemporary intelligent information society. At the same time, it is also aimed at young family members who are mostly unable to take care of the elderly around them. Twilight Yang APP is not only to serve the elderly, but also to reassure their families. Taking "Twilight Yang" as the homophonic sound, the IP image of APP-Lamb is constructed. The overcoming image and the guiding page image in APP are all based on this. APP mainly uses pink orange color, soft and warm color, reflecting the style and theme of the product as a caring APP. In addition, according to the relevant investigation and research, the elderly perception of color degradation performance in the warm tone sensitive, so the product more use of warm tone.