When designing an app for setting meetings, there are several metrics that can be used to measure its success. Here are a few examples: 1. User engagement: This metric can be measured through the number of active users, the frequency of app usage, and the length of time that users spend on the app. High levels of engagement indicate that users find the app useful and valuable. 2. User satisfaction: This metric can be measured through user surveys and feedback. The app should be designed to meet the needs of its users and provide a positive experience. 3. Conversion rate: This metric measures the number of users who take a desired action, such as scheduling a meeting, after using the app. A high conversion rate indicates that the app is effective in helping users achieve their goals. 4. Retention rate: This metric measures the number of users who continue to use the app over time. A high retention rate indicates that the app is meeting the ongoing needs of its users. 5. Revenue: If the app is monetized, revenue can be used as a metric to measure its success. This can include subscription fees, in-app purchases, or advertising revenue. When prioritizing these metrics, it's important to consider the goals of the app and the needs of its users. For example, if the app is designed to generate revenue, then revenue should be a top priority. If the app is designed to provide a positive user experience, then user engagement and satisfaction should be top priorities. Overall, the success of an app for setting meetings can be measured through a combination of metrics that reflect its effectiveness, user satisfaction, and revenue generation.