Mubble is very easy to use. Do following steps for Mubble setup:
1. Open Mubble after install and set your language
2. Give permissions on second screen if you have android 6.0 or above
3. Now, mubble takes sometime here for detecting your operator and circle.
4. Now, Enabling balance checker, it will help you to check your SIM balances instantly.
5. Now tap on balance check on reaching main page. Here you will see SIM balances and usage.
6. Go to Data tab and check balance, here you will see data balances and usages.
7. Go to Recharge tab and check latest recharge packs for your SIM.