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How to Top Up Your Mobile in Singapore — Complete Operator Guides

Whether you're topping up a prepaid SIM, managing a postpaid plan, or navigating Singapore's growing MVNO landscape, this guide covers every step, every method, and every operator.

We break down the exact recharge steps for Singtel, StarHub, M1, and all major MVNOs operating in Singapore — including app-based top-ups, online portals, retail vouchers, and USSD codes. No guesswork, just clear instructions.

Methods covered in this guide

My App
Online Portal
Credit Card
Retail Store
Voucher
4Major Operators
12+MVNOs Covered
5Top-Up Methods

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Guides are verified against official operator websites and updated regularly. Always confirm current rates directly with your operator.

Compare all top-up methods

Side-by-side comparison table below

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Operator Guides

Top-Up Guides for Every Singapore Operator

Step-by-step instructions for topping up with Singtel, StarHub, M1, Circles.Life, and Giga — covering every method available.

SI
Singtel
Ease of Use
Very Easy

Singapore's largest mobile operator

Available Top-Up Methods
My Singtel AppUSSD CodeAXS MachineOnline Portal
USSD Code*100#
Online Portalmobileaccount.singtel.com
App Top-Up — Quick Steps
  1. 1Download 'My Singtel' from App Store or Google Play
  2. 2Log in with your Singtel ID or mobile number
  3. 3Tap 'Top Up' on the home dashboard
  4. +3 more steps in the full guide →
ST
StarHub
Ease of Use
Very Easy

Your entertainment and connectivity hub

Available Top-Up Methods
StarHub+ AppUSSD CodeAXS MachineOnline Portal
USSD Code*101#
Online Portalstarhub.com/prepaid
App Top-Up — Quick Steps
  1. 1Download 'StarHub+' from App Store or Google Play
  2. 2Sign in with your StarHub account or register
  3. 3Select 'My Account' then tap 'Top Up'
  4. +3 more steps in the full guide →
M1
M1
Ease of Use
Easy

Fast, reliable and always connected

Available Top-Up Methods
M1 AppUSSD CodeAXS MachineMy M1+ Portal
USSD Code*111#
Online Portalm1.com.sg/prepaid
App Top-Up — Quick Steps
  1. 1Download 'My M1+' from App Store or Google Play
  2. 2Log in using your mobile number and OTP
  3. 3Tap 'Prepaid Services' then 'Top Up'
  4. +3 more steps in the full guide →
CI
Circles.Life
Ease of Use
Easy

Digital-first, fully app-based operator

Available Top-Up Methods
Circles.Life AppPayNow TransferCredit/Debit CardOnline Top-Up
USSD CodeN/A (app-only)
Online Portalcircles.life/sg
App Top-Up — Quick Steps
  1. 1Open the Circles.Life app (required for all management)
  2. 2Log in with your registered email and password
  3. 3Tap 'Wallet' or 'Top Up' from the bottom navigation
  4. +3 more steps in the full guide →
GIGA
Giga
Ease of Use
Easy

No-contract plans with transparent pricing

Available Top-Up Methods
Giga AppOnline PortalCredit CardPayNow
USSD CodeN/A
Online Portalgiga.com.sg
App Top-Up — Quick Steps
  1. 1Download 'Giga' app from App Store or Google Play
  2. 2Sign in with your mobile number — OTP verification
  3. 3Navigate to 'My Plan' then select 'Add Credit'
  4. +3 more steps in the full guide →
Guides Updated for 2024

All top-up methods, USSD codes, and portal URLs have been verified as of December 2024. If you notice any changes, please contact us so we can keep these guides accurate for everyone.

Quick Reference Guide

Top-Up Methods Comparison

Compare every way to recharge your prepaid SIM in Singapore — across all major operators. Filter by method type, or sort any column to find the best option for you.

15 methods
MethodCategorySupported OperatorsMin. AmountFeesProcessing TimeAvailability
Singtel AppApp
Singtel
S$5FreeInstant24/7
StarHub AppApp
StarHub
S$5FreeInstant24/7
M1 AppApp
M1
S$5FreeInstant24/7
MyCircle Life AppApp
Circle Life
S$10FreeInstant24/7
Operator WebsiteOnline
SingtelStarHubM1Circle LifeGOMOCircles.Life
S$5FreeInstant24/7
PayNow / PayLah!Online
SingtelStarHubM1
S$5FreeInstant24/7
AXS MachineKiosk
SingtelStarHubM1Circle Life
S$5S$0.50Instant24/7
AXS e-Station (Online)Online
SingtelStarHubM1
S$5S$0.50Instant24/7
SAM by NETSKiosk
SingtelStarHubM1
S$5S$0.20Instant24/7
7-Eleven / CheersRetail
SingtelStarHubM1Circle Life
S$5FreeWithin 1 hrStore Hours
Cheque (Mail-In)Other
SingtelStarHub
S$10Free3–5 DaysBusiness Hours
Prepaid Top-Up CardRetail
SingtelStarHubM1
S$5FreeWithin 1 hrStore Hours
Operator Retail StoreRetail
SingtelStarHubM1Circle Life
S$5FreeInstantBusiness Hours
Credit / Debit Card (Web)Online
SingtelStarHubM1GOMOCircles.Life
S$5FreeInstant24/7
GOMO AppApp
GOMO
S$10FreeInstant24/7

Instant Processing

Credit appears in your account within seconds of payment confirmation.

Short Wait

Top-up reflects within 1 hour depending on network processing load.

Extended Processing

Mail-in or offline methods may take several business days to process.

Information is updated regularly but may vary by operator. Always verify fees and availability directly with your carrier before topping up.

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