Custom Application development refers to the designing and building of mobile applications tailored to meet the specific needs of a business or individual. It involves creating a unique app from scratch, rather than using pre-built templates or existing software. This approach allows for greater flexibility and customization, and can help businesses to stand out from competitors by offering unique functionality and user experiences.

When choosing a App Development company, consider factors such as their experience, expertise, and reputation in the industry. You can also ask for references and view their portfolio of previous work to get a sense of their capabilities.

To ensure your custom App is secure, you can implement security measures such as data encryption, user authentication, and secure backend servers. It's also important to conduct regular security audits and updates to address any vulnerabilities that may arise in the future.

The platforms you should develop your custom App for depend on your target audience and their preferred devices. Generally, you should consider developing your app for both iOS and Android platforms to reach the widest audience. However, if you have limited resources, you may want to prioritize one platform over the other based on your target audience's preferences.

AI can be integrated through the use of machine learning algorithms, natural language processing, and computer vision technologies. Developers can use AI to create intelligent chatbots, predictive analytics, and personalized recommendations based on user data.

AI in custom Apps can collect and analyze important data such as location, contacts, and user behavior to improve user engagement and solve complex problems. By analyzing how users interact with the app, AI-enabled apps can collect and store data that can be used to provide personalized experiences and insights.