If you wonder how to check zong balance?, then zong customers can very easily check their balance using the zong app or by calling their customer helpline numbers. 

So to check by calling helpline numbers:

1. Open the dialler on your mobile phone. 

2. Now dial *221# and in a few seconds it will show your mobile’s balance.

3. You can also dial *310# to inquire about the remaining balance. 

Through Zong App:

1. Install the zong app on your smartphone.

2. After installing, run it on your device and sign up by entering the zong number.

3. You will receive an OTP via SMS, just enter it and complete the registration process.

4. As you sign in, you will see the current balance on its home screen.