From the Roblox Mobile App

Robux Balance

1. Be logged into the account where the Robux were bought
2. Tap the Robux  icon at the top of the app
3. Your Robux balance is displayed at the top

From a Browser

Robux Balance

Your Robux balance is shown in the upper right of the browser window.

Robux Spending History

1. Be logged into the account where the Robux were bought
2. Tap the Robux  icon in the upper right of the browser window
3. Tap your Robux value
4. View your Currency Purchase over the Past Day, Week, Month, Year on the Summary tab.
5. View how the Robux were spent on the My Transactions tab

From the Roblox Xbox One App

Robux Balance

1. While on the Home screen, click the Right Bumper (RB) until you reach the Robux screen.
2. On the Robux screen, in the lower-left corner, your current total is next to My Balance.