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Call Guard

Call Guard helps you block nuisance calls and prevent phone scams.

Auto-Blocking Nuisance Calls

Sidestep Phone Scam Traps

Accept/ Block Calls as Needed

Want a more comprehensive protection? “Cyber & Voice Security” averages from just $12/month, with “Data Guard” and “Call Guard” services for a complete data and call defense!
Learn more

Choose a Plan

Full Version*Review blocked calls, report suspicious numbers and customise your white/black list

Monthly Plan

HK$25/Month

12-month Subscription

3-month Waiver

Averages HK$18/Month

24-month Subscription^

6-month Waiver

Averages HK$18/Month

Lite Version*Review blocked calls

Monthly Plan

HK$8/Month

*In addition to the service fee, download, usage and content update of this app will incur data. It will be deducted from relevant subscribed service plans and charged at the applicable thereafter fee. Alternatively, it will be charged based on standard data charges.

▽ A 12-month contract is required. The average monthly fee $18 is based on the original monthly fee $25, a contract rebate of $25 per month will be given in first 3 bill months and a rebate of HK$9 will be given in the 4th bill month within contract period. After the expiry of the contract, the customer will be charged at the prevailing original monthly fee of the service if the customer continues to use the service.

^A 24-month contract is required. The average monthly fee $18 is based on the original monthly fee $25, after a contract rebate of $25 per month will be given in first 6 bill months and a rebate of HK$18 will be given in the 7th bill month within contract period. After the expiry of the contract, the customer will be charged at the prevailing original monthly fee of the service if the customer continues to use the service.


  • This service is available exclusively to SmarTone customers.
  • This service can be used on smartphones running designated software versions of compatible mobile operating systems of iOS and Android. For Android™ smartphone which does not support Google Play services, the Value-Added Service will not be applicable on the smartphone. The available smartphones running designated software versions of compatible mobile operating systems will be updated and amended from time to time. Please ask our store assistants for details.
  • Subject to relevant terms and conditions. Please refer to T&C-V150 for details of Call Guard (Full Version).
  • Subject to relevant terms and conditions. Please refer to T&C-V119 for details of Call Guard (Lite Version).