My3 is a free Android app from Three Ireland that lets you manage your My3 account on the go. With this app, you can easily check your account balance, view and pay bills, top up your account or someone else's, and much more. The app also allows you to control payment options with just a tap, manage multiple accounts, and check upgrade eligibility.

One of the standout features of My3 is the ability to top up friends and family or schedule your own top-up. You can also see your add-on and usage allowances, manage preferences, contacts and settings, and even find the latest offers and promotions. With the 3Store finder and online shopping feature, you can easily find a store near you or shop online.

Overall, My3 is a convenient and easy-to-use app for managing your My3 account. It offers a range of useful features and is a must-have for Three Ireland customers who want to stay on top of their account while on the go.