Call Defender - Caller ID

Contains adsIn-app purchases
4.2
109K reviews
Content rating
Everyone
1M+
Downloads
Content rating
Everyone
In-App Purchases
Learn more
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About this app

Call Defender, a FREE spam call blocking app that has protected millions of users against malicious spam calls.

“BLOCKING”: Just turn on "Spam Database" and enjoy a life free of spam, no additional charges needed! The database is provided by HKJunkCall.

“CALLER IDENTIFICATION”: Enjoy real-time caller identification! Call Defender shows the name of public or private organizations when they are calling you. Call Defender can identify over 500 thousand HK phone numbers which include hospitals, educational institutions and so on. You may want to pick up a call from the hospital even if you are in the middle of a important meeting, right? The data comes from HKJunkCall Whitelist, community, Internet, websites and number owners. We DONT upload the contact books of users.

“REALTIME DATABASE”: The system checks the database every 10 minutes, and updates to the device when there is a new spam number, effectively eliminating all spam calls that frequently harass people.

Call Defender provides the simplest way to block unwanted calls and protect your privacy with ease. Call defender also lets you know who is calling using our comprehensive global database with over 700 million numbers.

【 Product Features】
► Block Spam Calls automatically.
► Identify Unknown Calls
► Advance settings for customizing block calls.
► Search spam number database.
► Provide Daily Call Report for any blocked/missed calls.
► Anti-fraud Information Center, providing education messages about fraud to user.

Notes
• To make sure Call Defender works properly, please load the app at least once after installation.
• The point-rewards system will be deprecated.
• If you are using optimization software, make sure to put Call Defender as a trusted app.
• Network connection is required for database download or caller ID feature
• Devices using unofficial Android framework may have compatibility issues.

Privacy Policy: https://www.call-defender.com/privacy.html
Updated on
Apr 22, 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
Personal info, Contacts and 2 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

4.2
108K reviews
K Cheung
April 4, 2026
I have been using this app for over 10 years without any major issues. but after a factory reset, I can no longer login. the screen shows either login with Google or Facebook. either way it still shows "SING in failed". I strongly believe the "developer" have changed hands several times. now the latest owner of this app don't even understand the meaning of "SING IN failed". I don't assume we have to "SING a song before we can LOG in!
7 people found this review helpful
Gogolook
April 29, 2026
很抱歉帶來不好的體驗 🙇‍♂️ 您提到的問題我們非常重視,相信已於後續的版本修復,若還是持續有相同問題 建議您透過 App 內回報或客服信箱聯繫,我們會優先協助處理。
Wai Gun Wan
May 18, 2026
failed to block most junk calls, even though they are on the search results. The ads are annoying too.
Gogolook
May 19, 2026
用戶 你好, 造成App無法順利攔截/辨識的因素有許多,包含該電話號碼尚未回報/收入至資料庫、App版本或資料庫未更新至最新版,或是用戶未開啟小熊來電讀取權限等情況。因此,在遇到無法順利攔截或辨識的情況時,請用戶優先確認當前所使用的版本及資料庫為最新版,並確認手機已將小熊來電設定為開啟。關於權限設定,請在App 點選「進階設定」將「來電辨識視窗」設定為「全部開啟」。如排除上述形況仍無法有效攔截/辨識來電,請來信客服,並提交相關資訊(如手機型號及版本等),我們將儘速為你解決。
SOS
December 16, 2025
This great app had turned evil. The screen is covered by bad ads that confuse users, for example the ad was showing "app outdated, update now" pretending to be part of the system. It's no longer safe to use for my family members. Also recently the app is showing "unknown user" for calls from the phone-saved contact, and this covers the phone's origin display of the contact's name.
5 people found this review helpful
Gogolook
April 29, 2026
感謝您的回饋,我們已記錄您的建議。 Call Defender 團隊會持續優化相關功能,讓整體體驗更順暢。