What's the best iOS app for secure, private messaging with end-to-end encryption to protect my conversations and data from prying eyes?

Signal - Private Messenger is a top choice for secure messaging, providing end-to-end encryption to ensure your conversations remain private and protected. It's designed to prioritize user privacy, making it ideal for individuals concerned about data security. With Signal, all messages, voice calls, video calls, and file transfers are encrypted, meaning only you and the recipient can read or hear them. This prevents third parties, including Signal itself, from accessing your communications. The app uses an open-source encryption protocol that is widely respected and audited by security experts. Signal also offers features like disappearing messages, which automatically delete after a set time, and screen security to prevent screenshots. It doesn't track or store user data, ensuring maximum privacy. To use Signal, simply download the app, verify your phone number, and start communicating securely with your contacts. Signal is free to use and doesn't rely on ads or data monetization, further reinforcing its commitment to privacy.