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NumBuster

numbuster.com

Free plan WebiOSAndroid
Visit numbuster.com
Spec score 8.8 #5 of 41 in Call blocker apps

What it is

NumBuster identifies unknown callers and helps users screen phone fraud, spam, and unwanted messages. Its Android app can display caller information during a call and check numbers from the call log. The iPhone app also provides caller information on the call screen and call-log checks, and can block phone numbers. The homepage describes an anti-spam SMS client for Android, while a web app provides phone-number checks and help categories covering free and paid features.

Users can review and rate numbers, contributing community information that may help others assess potential threats. NumBuster says telephone-number information comes from registered users’ activity, not a purchased subscriber directory. A free mobile app is available alongside LIGHT, SMART, and PRO+ subscriptions, whose features vary. Depending on the tier, paid features include removing ads, page access blocking, AI reports, additional page cards, anonymous checks, visitor identification, and more monthly checks. The privacy policy describes safeguards including encryption, access controls, monitoring, backups, and vulnerability management. Non-users can submit privacy and deletion requests through supported website mechanisms without installing the app or creating an account. Feature availability can vary by country, operating system, app version, device, provider, platform capability, or legal circumstances. The terms say the service and mobile apps are not intended for residents of the EU, Bahrain, or the UAE.

Spec sheet

What it does
NumBuster is a community telephone-safety service that identifies callers, shows number ratings and reviews, and helps users reduce spam and fraudulent communications.Read 15 Oct 2026 · numbuster.com
Purpose
NumBuster identifies unknown callers and helps protect users from phone fraud, spam, and unwanted messages.Read 8 Oct 2026 · numbuster.com
Integrations
The service supports caller identification in WhatsApp and Viber on Android and offers Google and Apple sign-in identifiers.Read 15 Oct 2026 · numbuster.com
Support
Users can contact [email protected] with questions, payment or registration issues, or concerns about rights violations.Read 8 Oct 2026 · numbuster.com
Headquarters
The operator lists Office 33, Building 114, Road 383, Block 316, Manama, Kingdom of Bahrain.Read 15 Oct 2026 · numbuster.com
API statement
The privacy policy refers to communications transmitted by senders via an API but does not present public API reference or SDK documentation on that page.Read 15 Oct 2026 · numbuster.com
Availability limits
The terms say feature availability may vary by country, operating system, app version, device, telecommunications provider, platform capability, or legal circumstances.Read 8 Oct 2026 · numbuster.com
Call blocking
Users can block unwanted callers and configure Android pattern-based blocking for number prefixes or unknown numbers.Read 15 Oct 2026 · numbuster.com
Caller ID
The Android app can act as the default phone manager, showing probable caller names and spam or robocall warnings before answering.Read 15 Oct 2026 · play.google.com
Community data
Number information comes from registered users' permitted contacts, searches, tags, reviews, blocking actions and telephone-safety evaluations rather than a purchased subscriber directory.Read 15 Oct 2026 · app.numbuster.com
Company legal name
The service is operated by GOODLINE SOFTWARES W.L.L., commercial registration 175788-1.Read 15 Oct 2026 · app.numbuster.com
Data deletion
Google Play says users can request deletion of collected data, while the service provides account and personal-data deletion procedures.Read 15 Oct 2026 · play.google.com
Data sourcing
The privacy policy says telephone-number information is obtained through registered users’ activity rather than a purchased subscriber directory.Read 8 Oct 2026 · numbuster.com
Deletion requests
The privacy policy says non-users can use supported website privacy and deletion mechanisms without installing the app or creating an account.Read 8 Oct 2026 · numbuster.com
Founded or launched
Wikipedia records the Android project launch in May 2013 and the web site launch in February 2014.Read 15 Oct 2026 · en.wikipedia.org
Hosting providers
The current terms name Amazon Web Services, ClickHouse Cloud, CDNetworks, Firebase, Google Sign-In and Apple Sign-In among infrastructure or service providers.Read 15 Oct 2026 · app.numbuster.com
Independent popularity
AppBrain reports approximately 21 million installs and 80 thousand installs in the preceding 30 days.Read 15 Oct 2026 · appbrain.com
iPhone features
The iPhone app offers caller information on the call screen, call-log number checks, and phone-number blocking.Read 8 Oct 2026 · numbuster.com
Licence
The software is proprietary and the terms grant users a non-exclusive licence to access the service.Read 15 Oct 2026 · en.wikipedia.org
LIGHT features
LIGHT provides an animated icon, ad removal and a LIGHT badge on the user's page.Read 15 Oct 2026 · numbuster.com
Limit: access reliability
App Store reviews report login or loading failures, including a report that a newer version did not load in the UAE.Read 15 Oct 2026 · apps.apple.com
Limit: privacy criticism
Trustpilot reviewers alleged that the service publishes phone numbers without consent and makes removal difficult, raising GDPR concerns.Read 15 Oct 2026 · trustpilot.com
Limit: service guarantees
The terms disclaim guarantees of uninterrupted, secure, error-free or accurate results and tell users to independently verify number information.Read 15 Oct 2026 · numbuster.com
Limit: SMS capability
A Google Play reviewer complained that texting lacked photo or attachment support and reported poor premium-support response after requesting a refund.Read 15 Oct 2026 · play.google.com
Limit: usability and pricing
An App Store reviewer described the app as laggy, requiring browser tabs and having too many paid functions.Read 15 Oct 2026 · apps.apple.com
Messenger caller ID
On Android, a widget checks WhatsApp and Viber calls against NumBuster data and displays ratings, reviews, tags and scam warnings.Read 15 Oct 2026 · numbuster.com
Ownership news
Wikipedia states that Goodline Softwares W.L.L. acquired the project in 2025.Read 15 Oct 2026 · en.wikipedia.org
Paid tiers
The help center documents LIGHT, SMART, and PRO+ subscriptions, with features varying by tier.Read 8 Oct 2026 · numbuster.com
Praise: call identification
Independent Google Play feedback says the calling function works well, while AppBrain comments praise spam blocking, caller names and SMS protection.Read 15 Oct 2026 · play.google.com
Privacy and security
The privacy policy describes access controls, authentication and authorization, encryption, infrastructure and network security, monitoring and logging, vulnerability management, backups, and restricted administrative access.Read 8 Oct 2026 · numbuster.com
Private notes
Web users can attach a personal note to any number, and those notes remain visible only to the author.Read 15 Oct 2026 · numbuster.com
PRO+ features
PRO+ adds rating breakdowns, anonymous checking, visitor identification, higher monthly checks, a PRO+ badge, NeurOwl reports, extra cards, animated icons, details and ad removal.Read 15 Oct 2026 · numbuster.com
Product cards
Users can add product or service cards with photos, descriptions and logos to showcase offerings on their number page.Read 15 Oct 2026 · numbuster.com
Rating on AppBrain
4.33 out of 5 from 267553 ratingsRead 15 Oct 2026 · appbrain.com
Rating on Apple App Store
4.4 out of 5 from 409 ratingsRead 15 Oct 2026 · apps.apple.com
Rating on Google Play
4.7 out of 5 from 269K reviewsRead 15 Oct 2026 · play.google.com
Rating on Trustpilot
2.8 out of 5 from 3 reviewsRead 15 Oct 2026 · trustpilot.com
Security measures
NumBuster describes encryption, restricted administrative access, network controls, monitoring, logging, backups and keyed lookup safeguards for community data.Read 15 Oct 2026 · numbuster.com
SMART features
SMART adds page-access blocking, NeurOwl analysis, extra cards, animated icons, a details tab, a SMART badge and ad removal.Read 15 Oct 2026 · numbuster.com
SMS
The homepage describes an anti-spam SMS client for Android.Read 8 Oct 2026 · numbuster.com
SMS blocking
The iPhone app blocks text messages by sender number or keyword through separate stop-number and stop-word lists.Read 15 Oct 2026 · numbuster.com
Subscription periods
The terms list paid subscription options of 1, 3 or 6 months and 2 years, plus NumCy in-app currency for additional services.Read 15 Oct 2026 · numbuster.com
System requirement
AppBrain reports that the Android app requires Android 8.0 or newer and is 167.98 MB in size.Read 15 Oct 2026 · appbrain.com
Territorial notice
The terms say the service and mobile apps are not intended for residents of the European Union, Bahrain, or the United Arab Emirates.Read 8 Oct 2026 · numbuster.com
Web access
The browser version works without installation on modern browsers and provides number search, ratings, tags, reviews, notes and history.Read 15 Oct 2026 · numbuster.com
Web app
The help center provides WebApp-specific help categories, including paid features, free features, and phone-number checks.Read 8 Oct 2026 · numbuster.com

Plans and prices

Free Free Free mobile app; paid features and subscription tiers are also offered Read 8 Oct 2026 · numbuster.com
Free Free caller ID · spam call/SMS blocking · phone lookup · community reviews and tags · private notes Read 15 Oct 2026 · numbuster.com
LIGHT Price not published Animated icon · No ads · LIGHT badge Read 8 Oct 2026 · numbuster.com
PRO+ Price not published Rating breakdown · Anonymous checks · Visitor identification · Increased monthly checks · PRO+ tag · Page access blocking · NeurOwl AI reports · Additional page cards · Animated icon · Details tab · No ads Read 8 Oct 2026 · numbuster.com
SMART Price not published Page access blocking · NeurOwl AI reports · Additional page cards · Animated icon · Details tab · SMART tag · No ads Read 8 Oct 2026 · numbuster.com

Every NumBuster plan and price →

Strong points and limits

Strong points

  • Caller information and call-log number checks
  • iPhone app can block phone numbers
  • Users can review and rate numbers
  • Free mobile app is available

Limits

  • Not intended for residents of the EU, Bahrain, or UAE
  • Feature availability varies by location and platform

Who it suits

NumBuster may suit people who want caller identification, number checks, and community reports, as well as Android users seeking SMS spam filtering. Its stated territorial restriction means it is not intended for residents of the European Union, Bahrain, or the United Arab Emirates.

Verdict

NumBuster combines caller identification, number checks, and community ratings across mobile and web offerings. Its feature availability varies, and the terms exclude residents of the European Union, Bahrain, and the United Arab Emirates.

Where Specifiction places it

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