Apps need periodic updates to stay compatible with new Android/iOS versions, fix bugs, and add features your users request. We recommend a maintenance check every 2-3 months at minimum. Security-wise, we implement secure API communication (HTTPS), encrypted local storage for sensitive data, and secure login/authentication. If your app handles payments, we ensure PCI-compliant payment gateway integration rather than storing card details directly. Regular updates also keep your app ranking well in app store search results, since both stores favor actively maintained apps.