3.1
4.98K reviews
Content rating
Everyone
1M+
Downloads
Content rating
Everyone
Shares Location, Unrestricted Internet
Learn more
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image

About this app

The new csl app enables users to manage a mobile service plan and account, activate 5G roaming, enjoy 86-easy convenience and access limited-period offers.
Explore and manage your mobile service:
· Monitor and manage data and voice-calling usage, as well as roaming balance
· Check your account balance, billing history and settlement, and establish automatic credit card payment
· Manage data usage for secondary SIMs and sharing of data-roaming pass entitlement
csl customer offers and rewards
· Get coupons and limited-period offers via the “My Wallet & Rewards” feature
Browse the latest mobile models, service plans and roaming options:
· Enjoy exclusive pricing privileges when making a standalone handset purchase
· Obtain data top-ups, data-roaming day passes and other value-added services

Please note: Selected functions and information are exclusive to csl customers using a login account.
Updated on
May 7, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Location, Personal info and 3 others
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

3.1
4.87K reviews
Tamás Koppányi
January 8, 2026
Would like to buy a tourist eSIM, but it's not possible without first registering with a HK local phone number... How would a tourist have a local number?
2 people found this review helpful
Did you find this helpful?
Mauricio Weishaupt
December 15, 2025
The new update is terrible, the app gets stuck on card information and you are unable to close it or go back to the main menu screen.
3 people found this review helpful
Did you find this helpful?
Master Joe
April 19, 2026
Bad experience, changed to new plan China-Macau-HK Data. On the csl App, usage of roaming data disappeared on the home page. Very troublesome to locate data.
Did you find this helpful?

What’s new

This latest version incorporates numerous UI/UX improvements and enhances system stability to equip users with a seamless and user-friendly experience.
Content rating
Everyone
Shares Location, Unrestricted Internet
Learn more

App support

About the developer
CSL Mobile Limited
customerservice@hkcsl.com
39/F PCCW TOWER TAIKOO PLACE 979 KING'S ROAD 鰂魚涌 Hong Kong
+852 5471 6068

More by CSL Mobile Limited