whowho – Caller ID & Block MOD APK v4.24.0

whowho – Caller ID & Block is a caller identification and call management utility that displays real-time information about incoming numbers and offers tools to block nuisance calls. Suitable for users who receive frequent unknown or spam calls, the app provides screening, proactive rejection, and community-sourced reporting to reduce interruptions. The MOD APK version unlocks premium protections and advanced management options so users can prioritize trusted contacts and automate rejection rules.

Core Functionality

The core functionality centers on identifying incoming calls in real time and providing clear actions for each call. When a call arrives, the app attempts to match the number against a dynamic database and displays labels such as “spam”, “scam”, “telemarketer”, or known contact information. Real-time identification reduces the need to answer unknown numbers first; the app surfaces caller data within seconds so users can accept or reject with confidence. Spam rejection tools allow automated blocking of known nuisance numbers and suspicious patterns, while proactive blocking can be configured to stop entire ranges or specific categories before the phone rings. The dialer replacement component offers enhanced call handling compared to stock dialers: quick-access contact search, call history with tags, and one-tap actions for reporting numbers to the community database. Number management features include custom blocklists, whitelist controls to allow only trusted callers, and backup/restore of lists to preserve settings across device changes. Community-powered insights aggregate reports from other users to increase the accuracy of spam labels, and optional call recording is available as an accompaniment to logging and dispute resolution. Overall, the app performs identification, blocking, automated rejection, reporting, backup, and dialer replacement tasks while supporting integration with the device’s phone and contacts services.

Premium and MOD Features

The Premium and MOD APK variants remove limitations of the free version and add enhanced privacy and automation features. The MOD APK labeled as Premium Unlocked grants access to paid capabilities without in-app purchases. Below is a list of commonly unlocked features and what each provides:

• Ad-free experience — Removes advertisements that interrupt the interface and call screens for uninterrupted use and faster performance.
• Advanced spam filters — Enables multi-layer filtering rules, automatic pattern detection, and priority blocking for high-risk categories such as robocalls and known scams.
• Unlimited blocklist entries — Lifts any cap on the number of numbers, prefixes, or ranges that can be added to custom blocklists and automation rules.
• Call recording unlocked — Activates in-call recording where supported by the device, allowing calls to be saved for later review or documentation.
• Priority community updates — Grants faster access to new community reports and updates to the threat database for more timely identification.
• Backup and sync — Enables cloud or local backup of blocklists, settings, and reports without paywall restrictions, easing transitions between devices.
• Custom rejection messages and schedules — Allows predefined SMS replies for rejected calls and scheduling rules to block calls during specific hours automatically.

For users of the original APK without MOD access, the free package typically includes basic caller ID, manual reporting, and limited blocklist entries, while premium unlocks the advanced automation, recording, and ad removal items listed above.

Interface and Usability

The app interface is organized around a central call screen with supporting tabs for History, Contacts, Blocklist, and Settings. Incoming call overlays show the identified label and one-tap actions: accept, reject, report, or add to blocklist. Navigation uses a bottom tab bar for quick access to recent calls and community reports; single-tap filters allow switching between all calls and only flagged spam. Settings include granular customization such as adjustable sensitivity for spam detection, toggleable automatic rejection, and white/blacklist management. Widget support provides a home-screen shortcut to enable Do Not Disturb-style blocking or to open the blocklist editor. A dark mode option is available to reduce eye strain and save battery on OLED screens. Notification controls let users choose whether to receive passive warnings about suspected spam calls or active alerts for each identification event. Setup is straightforward: after granting required permissions, the app offers an onboarding checklist to enable caller access, configure default rejection behavior, and import contacts. Tooltips and in-app prompts explain reporting flows and backup options so new users can begin screening calls within minutes.

Permissions and Privacy

To function correctly, the app requests a set of permissions that align with its caller identification and blocking features. Common permissions include Phone (to detect incoming calls and replace the dialer), Contacts (to match numbers with stored contact names), Call Log (to annotate call history), Storage (to save backups and recorded calls), Microphone (required for call recording if enabled), and Network (to query the community database and push updates). Location permission is not required for basic caller ID but may be requested by some builds for analytics or fraud detection; users should review permission prompts carefully. Privacy considerations include the transmission of reported numbers and metadata to a community-driven database; this data is typically anonymized but contributes to public spam labels. The app can operate in a limited offline mode using locally cached data to identify previously seen spam numbers, but real-time community updates require network connectivity. Users sensitive to data sharing should review the privacy policy inside the app and use local-only settings where available to minimize external uploads.

Compatibility and Installation

Compatibility varies by build and device. Typical builds support a wide range of Android phones and tablets; many modern versions run on Android 5.0 (Lollipop) and above, but exact minimum requirements should be checked on the download page or app listing. Expected file size is moderate for a utility app—often under 50 MB—while recommended RAM is 1–2 GB for smooth background operation alongside other apps. To install the MOD APK, follow these steps: enable installation from unknown sources or allow the browser/file manager to install unknown apps in system settings; download the APK file from the host site; open the downloaded APK and follow the installer prompts to grant necessary permissions; after installation, launch the app and complete the onboarding sequence, granting phone and contact access and activating the caller ID service. Additional setup may include restoring a backup, enabling automatic blocking schedules, and activating call recording if supported by the device. If any modules or updates are available, install them from within the app to ensure the spam database is current before relying on automated blocking rules.