Backup SMS is an essential Android application designed for users who want to safeguard their SMS messages. This free app allows for easy backup and restoration of SMS messages, providing features like filtering by date range or specific contacts. Users can choose to back up messages from different folders such as inbox, sent, outbox, or drafts, ensuring comprehensive coverage of important communications. The exported messages can be saved as text files or sent via email, which adds convenience for users needing to access their messages on other devices.

The app requires several permissions, including access to SMS, contacts, and storage, to function effectively. It is important to note that during the restoration of SMS messages, users will need to temporarily change their default SMS handling application. Additionally, there is a limitation on the number of messages that can be exported at once; users are advised to keep exports under 1000 messages to avoid issues caused by Android's data exchange limitations.