Caico is a useful app designed to assist groups in coordinating their shopping activities at doujinshi events and other similar gatherings. With this app, users can easily manage their purchases and share information with their group members.

One of the key features of Caico is the ability to register images for circles and items. This allows users to visually identify and keep track of the different circles and items they are interested in. Additionally, users can add memos and link tags to each circle or item, providing further organization and easy access to related websites.

Caico also offers the option to register up to six maps. This can be particularly helpful in large venues where it's easy to get disoriented. By having multiple maps available, users can ensure they always know where they need to go.

Another useful feature of Caico is the ability to mark items as "purchased" or "not purchased." This helps users keep track of their shopping progress and avoid purchasing duplicates. Additionally, Caico allows for the sharing of lists and shopping statuses within a group, making coordination and communication much easier.

It's important to note that using the app while walking can be dangerous, so users are advised to exercise caution and not disturb others when operating the app.

Please be aware that Caico displays banner ads in certain screens. However, these ads do not appear during the shopping mode, ensuring that accidental taps on ads will not interrupt the shopping experience.