You can top up mobile credit for your family member/friend through the Boost app by following the steps below:
1) Navigate to the "Prepaid" page
2) Select "Others" option on top
3) Enter the phone number or select the person you wish to top up from your contact list by clicking on the phone book icon
4) Now select the Telco and the amount you wish to top up
5) Click on the "check" mark to confirm your selection
5) You will be asked to enter your 6-digit transaction PIN to confirm purchase
6) You will be directed to the next page that notifies once the transaction is completed
7) Shake your mobile for extra cash back and you're all set!
You and the recipient will receive a message from mobile operator notifying you of the successful top up!