Call Defender ( aka Studio Kuma Call Filter ) is a FREE spam call blocking app that can protect you against annoying spam calls, helping millions of Hong Kong users. Just turn ON "Spam Number Block" when you need to avoid them and enjoy spam free life!
Call Defender provides the simplest way to block unwanted calls and protect your privacy with ease. Call defender also lets you know Caller Identification using our comprehensive global database with over 600 million numbers.
► Block spam calls
Just turn on spam block feature and make Call Defender to filter out and block all those annoying spam calls.
► Instant Caller Identification
With this feature on, we can show you who the caller is so that you can easily decide which phone calls to pick up.
► The most powerful database in the market
Call Defender utilizes 3 different types of data: HKJunKCall, Whoscall and MalCallDB, which makes it powerful than all others.
► Advanced settings for advanced users
For those of you who want more than just blocking spam calls, check out "Advanced settings" to enjoy tons of useful options.
► Database update with Wi-Fi only
You can save data network traffic by choosing "Update with Wi-Fi only" option.
► Search spam numbers
Tap on "Search" icon at the top-right corner to search for spam numbers in our database.
► Report suspicious numbers to us
Help other Call Defender users to block spam calls better by reporting spam calls.
► Benefits of pro version
When you do not want to be distubed by any calls, just turn on Quiet Mode.
If you are getting too many calls a day, Daily Call Report can help you go over
any important calls you may have missed. And much more
Q: I want to set "No action", what should I do?
A: Just turn off "Spam number block" switch. We will still show call dialog when there's an incoming call so that you can decide to pick up the call or not.
Q: I have paid for ad-free version before. What happens?
A: You can still enjoy the app as ad-free. If your purchase is not verified automatically, please go to [Menu > About > Verify purchase history].
If you have any questions, please feel free to contact us via [Menu > About > Contact us] or mail ([email protected]
• To make sure Call Defender works properly, please load the app at least once after installation.
• If you are using optimization software, make sure to put Call Defender as trusted app.
• From Android OS 4.4 or above, SMS cannot be blocked due to system limitation.
• Network connection is required for database download or caller ID feature
• Devices using unofficial Android framewwork may have compatibility issues.
Xiamio, MIUI, Meizu, Flyme OS, Aliyun OS, OMS, Blackberry BB10, Android 4.0.0/4.1.9/4.2.9
1. Added back "No action" option
2. Separated Roaming filter option
3. Improved performance and stability
Brand New UI with New App Name: Call Defender
- Simpler and easier UI
- New Quiet mode for your private time
* More new features will be coming soon.
* You can get 7 days free trial for Pro version.