Determining whether a text message has been viewed on Android devices typically relies on a feature called “read receipts.” This functionality, when enabled by both the sender and recipient, provides confirmation to the sender that the message has been opened by the recipient. The visual cue indicating a read message can vary depending on the messaging application, but often includes a change in the status icon or text (e.g., “Read,” double checkmarks in a different color). For instance, if a user sends a message through a supported SMS app with read receipts activated and the recipient also has the feature enabled and opens the message, the sender will receive a notification confirming it has been viewed.
The ability to confirm message delivery and viewing offers benefits to both senders and recipients. For senders, it provides assurance that important information has been received and presumably processed, facilitating timely responses or follow-up actions. It can be particularly useful in professional contexts or when conveying time-sensitive information. From a historical perspective, the concept of delivery and read confirmations evolved from earlier forms of electronic communication, reflecting a growing need for verifiable message exchange. However, user privacy considerations have always played a significant role in how these features are implemented and controlled.