At a glance
- Latest version
- v1.0 (7)
- Updated
- Sep 7, 2025 (1 year ago)
- APK size
- 3.5 MB
- Requires
- Android 4.0.3+ (API 15)
- CPU support
- Any (no native code)
- Category
- Communication (app)
- Listed since
- Oct 8, 2019 (at least)
- Permissions
- 7 (2 sensitive)
- Website
- jcallblocker.wordpress.com
- Developer contact
- [email protected]
- Privacy
- Developer's privacy policy
About this APK
J Call Blocker is an app by Jansof in the Communication category, listed since at least October 2019. It has no native code, so it runs on any Android processor.
It asks for 7 permissions, 2 of them sensitive: call phone and read phone status and identity.
What's new in v1.0
Description
From the listing uploaded by “catappult”.
Security & authenticity
Signing certificate
- Certificate with Google's generic name Google Play App Signing gives the keys it manages this name, but anyone can put it in a certificate, so this alone proves nothing.
Store checks and file details
- Developer signature verified Mar 14, 2020
- Antivirus scan passed Sep 15, 2020
- Signed byCN=Android, OU=Android, O=Google Inc., L=Mountain View, ST=California, C=US
- Signing certificate (SHA-1)45:10:94:15:26:63:D6:B5:C0:54:D2:8A:94:2B:C4:45:3F:15:77:5C
- File MD5b3bacb4695f1e7c738fc26484d22804e
- Uploaded by “catappult” Platinum tier · 1,377 followers · uploading since 2018
Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures. AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.
Permissions (7)
J Call Blocker requests 7 permissions, 2 of them sensitive.
- Call phone Sensitive android.permission.CALL_PHONE
- Read phone status and identity Sensitive android.permission.READ_PHONE_STATE
- Full network access android.permission.INTERNET
- Google Play install referrer com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
- Prevent the device from sleeping android.permission.WAKE_LOCK
- Process incoming calls android.permission.PROCESS_INCOMING_CALLS
- View network connections android.permission.ACCESS_NETWORK_STATE
Required hardware & features
- Basic touch input android.hardware.faketouch
- Portrait screen android.hardware.screen.portrait
- Telephony (SIM) android.hardware.telephony
J Call Blocker APK: questions and answers
Can I install this APK over the version I already have?
Only if it is signed with the same certificate as the copy on your phone and isn't an older version. If Android says “App not installed”, the certificates differ; uninstalling your copy first works but deletes its data unless it is backed up.
Is the J Call Blocker APK safe?
No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. After downloading, check that the file's MD5 is b3bacb4695f1e7c738fc26484d22804e.
