If you're looking for alternatives to SQLite for your Android app, there are a few options you can consider. Here are three popular alternatives:

1. Realm:
Realm is a mobile database that provides an alternative to SQLite. It offers a simple and intuitive API, real-time data synchronization, and automatic handling of object relationships. Realm is known for its speed and efficiency, making it a popular choice for many Android developers.
2. Room:
Room is an abstraction layer built on top of SQLite, provided by the Android Jetpack libraries. It simplifies database operations and provides compile-time checks for SQL statements. Room handles the boilerplate code for you, making it easier to work with databases in your Android app.
3. Firebase Realtime Database or Cloud Firestore:
Firebase provides two real-time database solutions that can be used as alternatives to SQLite. Firebase Realtime Database is a NoSQL cloud-hosted database, while Cloud Firestore is a more feature-rich document-based database. Both options offer real-time synchronization, offline support, and easy integration with other Firebase services.
When choosing an alternative to SQLite, consider your app's requirements, such as performance, real-time synchronization, and ease of use. Each option has its own strengths and weaknesses, so pick the one that aligns best with your specific needs.