Octopus Balance Reader

The very first app to retrieve the balance of the HK Octopus Card since 2011

studenttwok · com.hklight.octopusreader

Not rated yet 1M+ downloads v2.0.6 9.9 MB Android 6.0+ PEGI 3 · Everyone

Download APK 9.9 MB All versions

Signature matches the Google Play version Details

At a glance

Latest version: v2.0.6 (25)
Updated: Feb 10, 2026 (8 months ago)
APK size: 9.9 MB
Requires: Android 6.0+ (API 23)
CPU support: Any (no native code)
Category: Tools (app)
Listed since: Dec 5, 2023 (at least)
Permissions: 10
Website: hklight.net
Developer contact: [email protected]

About this APK

Octopus Balance Reader is an app by studenttwok in the Tools category, listed since at least December 2023. It has no native code, so it runs on any Android processor.

Since version 2.0.3, the APK grew from 7.4 MB to 9.9 MB and the minimum Android version rose from 4.4 to 6.0. It asks for 10 permissions, none of them sensitive. It asks for the same permissions as version 2.0.5. The app can read the advertising ID that ad and analytics services use.

What's new in v2.0.6

Update SDK

Description

From the listing uploaded by “appupdater”.

First app to retrieve the balance of the HK Octopus Card, since 2011. Once you own an NFC enabled android phone, you are eligible to use this app. Thanks for support us for more than 10 years, the app is revamped to support modern Android version. With improved UX. Able to read the balance offline! This app will only read the data from the card. It will not modify any data on your card. Thanks for your support! :) Sound is emitted by the system, even after you uninstall this app. Android try to show you that no app is suitable to read your card. FAQ please refer to http://hklight.net/#OctopusBalanceReader The old version Octopus cannot be read due to Android NFC hardware constraint. The card id of old version Octopus card contains no bracket and 8 digit only. Notice: No cracking or illegal activity are involved during development process. All the reading feature is performed under the mechanism provided by the card system. Google Nexus S and Samsung Galaxy Nexus are the only two devices that can be bought in Hong Kong and having NFC hardware. Tested Device: 1. Google Nexus S (4.1.1) 2. Samsung Galaxy Nexus 3. Asus Nexus 7 4. Galaxy Galaxy S3 Sony Xperia S(Reported by users) Galaxy S 2 HK version has no NFC. Feedback report that the below device can run the app normally. HTC ONE X Samsung Galaxy SIII Sony Xperia Sola Sony Xperia S Attention: 1. Octopus is the trademark of Octopus Holdings Limited. 2. This is not an official app by Octopus Holdings Limited. I will not responsible for any lose or damaged that are caused.

Version history

4 versions are listed, going back to v2.0.3. Since v2.0.6 it requires Android 6.0+.

v2.0.6 LATEST Feb 10, 2026 9.9 MB TRUSTED v2.0.5 Mar 31, 2025 8.9 MB TRUSTED v2.0.4 Jul 23, 2024 8.9 MB TRUSTED v2.0.3 Jun 3, 2024 7.4 MB TRUSTED

All 4 versions

Security & authenticity

Security rating: Trusted

Signing certificate

Signature matches the Google Play version Checked by the source store on Feb 10, 2026.
Certificate issued to “hklight” This is the certificate of the Google Play version.
Same certificate as the 2 other versions checked

Store checks and file details

Developer signature verified Feb 10, 2026
Validated against Google Play Feb 10, 2026
Signed byO=hklight
Signing certificate (SHA-1)F0:DC:B9:36:76:8B:01:9C:78:90:10:EC:56:FB:DB:CF:14:16:B0:1B
File MD52177beb2a0c4b49c1d848e9f710f696c
Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020

Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (2 other versions compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (10)

Octopus Balance Reader requests 10 permissions, none of them sensitive.

Access adservices ad id android.permission.ACCESS_ADSERVICES_AD_ID
Access adservices attribution android.permission.ACCESS_ADSERVICES_ATTRIBUTION
Access adservices topics android.permission.ACCESS_ADSERVICES_TOPICS
Advertising ID com.google.android.gms.permission.AD_ID
Full network access android.permission.INTERNET
Internal broadcast protection (app-defined) com.hklight.octopusreader.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Nfc android.permission.NFC
Prevent the device from sleeping android.permission.WAKE_LOCK
Run foreground services android.permission.FOREGROUND_SERVICE
View network connections android.permission.ACCESS_NETWORK_STATE

Required hardware & features

Basic touch input android.hardware.faketouch
NFC android.hardware.nfc

Octopus Balance Reader APK: questions and answers

Is there a version of Octopus Balance Reader for older Android phones?

The current version needs Android 6.0 or later. Version 2.0.5 is the newest listed build that installs on Android 5.0 and later. It is an old build: apps that rely on online services may no longer connect when they are this old. Get version 2.0.5 · All versions

Can I install this APK over the version I already have?

Yes, if your installed copy is older. It is signed like the Google Play version, so Android installs it as an update and keeps your data.

Is the Octopus Balance Reader APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. Its signature matches the Google Play version. It is signed with the same certificate as the 2 other versions checked. After downloading, check that the file's MD5 is 2177beb2a0c4b49c1d848e9f710f696c.