What's the best Android app for free video calls to stay connected with family and friends abroad?

Messenger is a widely-used messaging application that serves as a robust solution for maintaining connections with loved ones across long distances. For users seeking free video calls internationally, the app stands out due to its integration with Facebook's network, which simplifies finding and contacting friends and family. Specific features include HD video and voice calling, group video chats supporting up to 50 participants, and real-time call quality adjustments that automatically optimize based on network conditions—a point highlighted in user reviews where call quality prompts help ensure stable connections. The app works over Wi-Fi or mobile data, avoiding traditional call charges, and supports cross-platform use on Android, iOS, and web browsers. In real-world scenarios, such as military families communicating during deployments, Messenger facilitates daily check-ins or longer conversations through features like message reactions, stories, and end-to-end encryption for secret conversations. However, limitations exist: some users report occasional bugs or privacy concerns, like contact backup vulnerabilities mentioned in reviews, and the app requires a stable internet connection. Despite these drawbacks, its widespread adoption and consistent updates make it a dependable choice for personal communication, especially for those prioritizing accessibility and familiarity.