Postgres Client is a free Android app developed by Rafael R. Silva that allows users to connect to servers of PostgreSQL databases and execute queries directly from their smartphone or tablet. With this app, users can manage their SQL files in a single tool and export query results to spreadsheets.

Postgres Client is a powerful tool for those with SQL knowledge, but it comes with a caution. The app has no command limitations, which means that users can execute potentially harmful commands such as DELETE, DROP, and UPDATE. Therefore, it is recommended that users exercise caution when using this app.

Overall, Postgres Client is a useful app for anyone who needs to connect to PostgreSQL databases on the go. Its simple interface and easy-to-use features make it a valuable tool for managing SQL files and executing queries from your Android device.