Welcome to the Octopus (Hong Kong) Site.

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Octopus Logo

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Octopus App

Manage all your daily transactions with the all-new Ocotpus App

The all-new Octopus App enables you to enjoy a wide range of services and manage both your Octopus card and O! ePay account with one single app for the following services anywhere anytime (A separately purchased Octopus Mobile Reader is required for iOS users for some services):

  • Check the remaining value, the latest transaction records and other information¹ of Octopus card / Octopus Mobile SIM;
  • One-stop sign-up / log-in O! ePay to make P2P payment with friends and top up your Octopus Cards / Octopus Mobile SIM²;
  • Make online purchase, bill payment (coming soon) and donation at designed online merchants with O! ePay, Octopus card or Octopus Mobile SIM;
  • Enjoy fabulous offers² provided by merchants;
Download the Octopus App; sign-up O! ePay and add friend to get Häagen-Dazs™ ice cream!

¹ Other information includes Octopus auto-reload amount (applicable to subscribers of the Octopus Automatic Add Value Service (AAVS)), Octopus Reward$ balance (applicable to holders of Octopus Rewards Membership Octopus), enquiry date, time and last reload date either by AAVS or cash.

² Customers must register O! ePay account in order to enjoy certain offers and all O! ePay services.

Android iOS
System Requirement
  • Android 4.0 or above
  • NFC enabled
Useful Tips
  • Please place your Octopus card at the back of the mobile device until the enquiry / payment completes.
  • Please place only one Octopus card at a time during the enquiry / payment. Do not place two or more cards at the back of the mobile device simultaneously.
  • The design of the NFC antenna and transmission power of each device varies. Most of the handsets are able to read the Octopus card in close contact distance. If your Octopus card cannot be read properly, please try placing your Octopus card about 1 to 2cm away from your handset.
  • Please click here(tested NFC mobile device models) for tested NFC mobile device models and the NFC detection area for selective models.
  • Must equip with an Octopus Mobile Reader and successfully pair up the Octopus Mobile Reader with the iOS mobile device for some services
  • Please place your Octopus card on the Octopus Mobile Reader and do not remove until the enquiry / payment completes.
  • Please place only one Octopus card at a time during the enquiry / payment. Do not place two or more cards on the Octopus Mobile Reader.
  • Please go to the Bluetooth settings and choose "Forget this device" and proceed with pairing again if the Octopus Mobile Reader has been paired with other devices.
  • You can put your registered Octopus card and Octopus Mobile Reader into the card holder provided for the ease of carrying.

Download Application

open Google Play to download "Octopus" App open App Store to download "Octopus" App

You can also search and download from the Google Play and App Store!Download "Octopus" App


  • Each mobile device can register up to 20 Octopus card via this application.
  • This application is only applicable to Octopus card with a 9-digit Octopus number (eight digits plus one single digit inside the bracket).
    If you are a holder of a First Generation On-loan Octopus card (last digit of card number has no bracket), you can replace it at the Octopus Service Points located at designated MTR stations and shopping malls free of charge in order to enjoy the services in the Octopus App. Find out more (Octopus Card Replacement programme)!


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Did you know?

Octopus processes over 3 million transactions a day through the MTR system, saving time and money for commuters and the MTR Corporation.

Caring Company
© 2012 Octopus Cards Limited. All rights reserved.