Phone

Call Defender

Version 5.6.2.2 13.2 MB

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Permissions Explained 27 permissions requested View details

This app requests 27 permissions. The table below explains what each permission may allow and what users should review before installing.

Status	Permission	What it means	Why it may be used	User safety note
⚠️ Sensitive	Modify external storage android.permission.WRITE_EXTERNAL_STORAGE	Allows the app to write or modify files in shared device storage.	Used for saving downloads, media files, exports, edited documents, backups, or cached content.	Sensitive permission. Make sure file access matches the app’s purpose.
⚠️ Sensitive	Read external storage android.permission.READ_EXTERNAL_STORAGE	Allows the app to read files from shared device storage.	Used by media players, file managers, backup apps, editors, upload tools, and document apps.	Sensitive permission. Review carefully if the app does not need access to files or media.
⚠️ Sensitive	Read phone state android.permission.READ_PHONE_STATE	Allows the app to access phone status and device-related information.	Used for call handling, carrier services, device identification, account security, or playback interruption handling.	Sensitive permission. Review whether the app has a clear phone-related reason.
✅ Common	Internet access android.permission.INTERNET	Allows the app to open network connections and communicate with online services.	Commonly used for streaming, syncing, login, ads, analytics, downloads, cloud features, and app updates.	Common permission. Review the app’s behavior if it does not appear to need online access.
ℹ️ Review	System Alert Window android.permission.SYSTEM_ALERT_WINDOW	This is an Android permission or app-specific permission requested by the app.	The app may use this permission for features related to its category, device support, background behavior, storage, connectivity, or system integration.	Review this permission before installing, especially if it does not match the app’s expected purpose.
✅ Common	View network status android.permission.ACCESS_NETWORK_STATE	Allows the app to check whether the device is connected to Wi-Fi, mobile data, or another network.	Often used to avoid loading content when offline or to adjust loading based on connection quality.	Generally low risk by itself.
🚨 High attention	Place phone calls android.permission.CALL_PHONE	Allows the app to start phone calls.	Used by dialers, support apps, emergency apps, business apps, or communication tools.	High attention permission. Grant only when calling features are expected.
ℹ️ Review	Write Contacts android.permission.WRITE_CONTACTS	This is an Android permission or app-specific permission requested by the app.	The app may use this permission for features related to its category, device support, background behavior, storage, connectivity, or system integration.	Review this permission before installing, especially if it does not match the app’s expected purpose.
⚠️ Sensitive	Read contacts android.permission.READ_CONTACTS	Allows the app to read contacts stored on the device.	Used for messaging, calling, social features, contact sync, invitations, or account matching.	Sensitive permission. Review carefully if the app does not need contact-related features.
ℹ️ Review	Read Call Log android.permission.READ_CALL_LOG	This is an Android permission or app-specific permission requested by the app.	The app may use this permission for features related to its category, device support, background behavior, storage, connectivity, or system integration.	Review this permission before installing, especially if it does not match the app’s expected purpose.
ℹ️ Review	Write Call Log android.permission.WRITE_CALL_LOG	This is an Android permission or app-specific permission requested by the app.	The app may use this permission for features related to its category, device support, background behavior, storage, connectivity, or system integration.	Review this permission before installing, especially if it does not match the app’s expected purpose.
ℹ️ Review	Access Wifi State android.permission.ACCESS_WIFI_STATE	This is an Android permission or app-specific permission requested by the app.	The app may use this permission for features related to its category, device support, background behavior, storage, connectivity, or system integration.	Review this permission before installing, especially if it does not match the app’s expected purpose.
ℹ️ Review	Receive Boot Completed android.permission.RECEIVE_BOOT_COMPLETED	This is an Android permission or app-specific permission requested by the app.	The app may use this permission for features related to its category, device support, background behavior, storage, connectivity, or system integration.	Review this permission before installing, especially if it does not match the app’s expected purpose.
ℹ️ Review	Receive Sms android.permission.RECEIVE_SMS	This is an Android permission or app-specific permission requested by the app.	The app may use this permission for features related to its category, device support, background behavior, storage, connectivity, or system integration.	Review this permission before installing, especially if it does not match the app’s expected purpose.
🚨 High attention	Send text messages android.permission.SEND_SMS	Allows the app to send SMS messages from the device.	May be used by messaging, emergency, carrier, automation, or verification apps.	High attention permission because it can create charges or send messages from your number.
ℹ️ Review	Receive Mms android.permission.RECEIVE_MMS	This is an Android permission or app-specific permission requested by the app.	The app may use this permission for features related to its category, device support, background behavior, storage, connectivity, or system integration.	Review this permission before installing, especially if it does not match the app’s expected purpose.
ℹ️ Review	Vending Billing com.android.vending.BILLING	This is an Android permission or app-specific permission requested by the app.	The app may use this permission for features related to its category, device support, background behavior, storage, connectivity, or system integration.	Review this permission before installing, especially if it does not match the app’s expected purpose.
ℹ️ Review	Access Superuser android.permission.ACCESS_SUPERUSER	This is an Android permission or app-specific permission requested by the app.	The app may use this permission for features related to its category, device support, background behavior, storage, connectivity, or system integration.	Review this permission before installing, especially if it does not match the app’s expected purpose.
ℹ️ Review	Disable Keyguard android.permission.DISABLE_KEYGUARD	This is an Android permission or app-specific permission requested by the app.	The app may use this permission for features related to its category, device support, background behavior, storage, connectivity, or system integration.	Review this permission before installing, especially if it does not match the app’s expected purpose.
ℹ️ Review	Get Accounts android.permission.GET_ACCOUNTS	This is an Android permission or app-specific permission requested by the app.	The app may use this permission for features related to its category, device support, background behavior, storage, connectivity, or system integration.	Review this permission before installing, especially if it does not match the app’s expected purpose.
ℹ️ Review	Get Tasks android.permission.GET_TASKS	This is an Android permission or app-specific permission requested by the app.	The app may use this permission for features related to its category, device support, background behavior, storage, connectivity, or system integration.	Review this permission before installing, especially if it does not match the app’s expected purpose.
ℹ️ Review	NFC access android.permission.NFC	Allows the app to use near-field communication features.	Used for tap-to-pay, access cards, tags, pairing, identity, transit, or device sharing features.	Review if the app has no clear NFC-related function.
✅ Common	Vibration control android.permission.VIBRATE	Allows the app to control device vibration.	Used for notifications, alerts, haptic feedback, timers, alarms, or game feedback.	Generally low risk by itself.
ℹ️ Review	Keep device awake android.permission.WAKE_LOCK	Allows the app to prevent the device from sleeping while a task is running.	Used for media playback, downloads, navigation, alarms, calls, or long-running background tasks.	Review battery usage if the app keeps the device awake too often.
ℹ️ Review	Write Settings android.permission.WRITE_SETTINGS	This is an Android permission or app-specific permission requested by the app.	The app may use this permission for features related to its category, device support, background behavior, storage, connectivity, or system integration.	Review this permission before installing, especially if it does not match the app’s expected purpose.
ℹ️ Review	Com Studiokuma Callfilter Permission C2d Message com.studiokuma.callfilter.permission.C2D_MESSAGE	This is an Android permission or app-specific permission requested by the app.	The app may use this permission for features related to its category, device support, background behavior, storage, connectivity, or system integration.	Review this permission before installing, especially if it does not match the app’s expected purpose.
ℹ️ Review	C2dm Permission Receive com.google.android.c2dm.permission.RECEIVE	This is an Android permission or app-specific permission requested by the app.	The app may use this permission for features related to its category, device support, background behavior, storage, connectivity, or system integration.	Review this permission before installing, especially if it does not match the app’s expected purpose.

About Call Defender

This app page is currently being populated with metadata.

What Call Defender Is Used For

Call Defender appears to be a phone-focused app built around call and message filtering. Based on the name and the permissions it requests, it may be used to help manage incoming calls, review call activity, and handle contact-related functions on an Android device. It also requests access to SMS, MMS, and call log data, which suggests it may interact with phone communications rather than serving as a general-purpose utility.

The app’s permission set also points to features that may support alerts, background operation, boot-time startup, and network communication. That means it could be used on a regular Android phone for ongoing call screening or contact management tasks, possibly with some notification or blocking-related behavior. Because it requests sensitive permissions such as reading and writing call logs, contacts, and messages, it is the kind of app users typically consider only when they want tighter control over phone communications or call records.

Common uses

May help filter or manage incoming calls on an Android phone
May read call log details to support call tracking or blocking features
May access contacts to match callers against saved entries
May interact with SMS and MMS messages for communication-related filtering
May run in the background and restart after reboot for ongoing phone management
May show overlays or alerts during incoming calls or related events
May use network access for syncing or service-related functions

Best for:

phone users call screening contact management message filtering background phone tools

Related tags

App Details

Package:
com.studiokuma.callfilter

Version:
5.6.2.2

Contains Ads:
No

In-App Purchases:
No

Official Listing

Package name: com.studiokuma.callfilter

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How to Download Call Defender

If this app is not hosted directly on APKApps official link, then for the safest and most up-to-date version, install it from its official Google Play listing.