Report updated Apr 17, 2026

Overview · Full Intel report in progress

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Firewall - Spam Call Blocker is an established utilities app that is available. With a 4.3/5 rating from 1.6K reviews, it shows polarized user reception.

What is Firewall - Spam Call Blocker?

Firewall is a utility app that manages incoming communications by restricting calls and texts to a user-defined whitelist of contacts. It aims to eliminate spam and robocalls by routing all non-approved callers to voicemail, while offering additional privacy tools like anonymous outbound calling.

Current Momentum

v1.3 · 43mo ago

Zombie

Last updated 1303d ago. 5 versions tracked.

AI-powered deep analysis surfacing high-signal insights. Still in beta, accuracy improves daily. For informational purposes only.

Competition

Rivals identification in progress

7-Day Rank Pulse 🇺🇸

Utilities

No ranking data

Rating Pulse 🇺🇸

What makes this app unique?

What Does It Look Like?

How Is The App's Momentum Right Now?

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What Are The Key Features?

Whitelist-based Call BlockingStandard

Blocks all incoming calls except those from approved contacts, effectively filtering out robocalls and unknown numbers.

SMS Spam BlockerStandard

Filters unwanted text messages to reduce disruptions and maintain user privacy.

Visual VoicemailStandard

Provides a system to screen and manage messages left by callers.

Anonymous Outbound CallingStandard

Allows users to make calls while protecting their personal phone number.

How much does it cost?

Subscription

Who Built It?

Ad Hoc Labs, Inc app icon

Ad Hoc Labs

(92.2K)

Providing privacy-focused communication tools for users seeking to manage digital boundaries and reduce unwanted contact.

Portfolio

2

Apps

Free 1
Utilities100%

Who is Ad Hoc Labs?

Ad Hoc Labs has established a niche in the privacy-utility sector by focusing on the tension between digital connectivity and personal security. Their flagship product leverages a subscription-based model to provide virtual phone numbers, effectively serving as a gatekeeper for users navigating online marketplaces or professional networking. The primary strategic risk lies in the gap between their high-grossing performance and persistent user friction regarding billing transparency, which threatens long-term brand equity.

Who is Ad Hoc Labs for?

  • Privacy-conscious individuals
  • Online marketplace participants
  • Professionals requiring secondary communication channels
Intense

Portfolio momentum

Released 12 updates across 2 apps in the last 6 months, indicating a high-frequency maintenance and development cycle.

Last release · 20d agoActive apps · 1Abandoned · 1

Analysis in progress, available soon

What do users think recently?

Analysis in progress, available soon

Analysis in progress, available soon

What is the competitive landscape for Firewall - Spam Call Blocker?

How's The Utilities Market?

Market outlook for this category

Available very soon

Strategic analysis coming soon

SWOT, key takeaways & outlook

The outtake for Firewall - Spam Call Blocker

Key Takeaways

While the app offers a unique whitelist-only approach to spam, recent user feedback highlights critical technical stability issues and potential difficulties with call routing after uninstallation.

Where Is It Heading?

Trend analysis

Available very soon

Disclosure

Independent intel to help builders create better apps.

AI-powered analysis with editorial review, built from publicly available sources. See methodology.

Marlvel.ai is not affiliated with, endorsed by, or sponsored by Firewall - Spam Call Blocker, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

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Cite this report

Marlvel.ai. “Firewall - Spam Call Blocker Intelligence Report.” Updated Apr 17, 2026. https://marlvel.ai/intel-report/utilities/firewall-spam-call-blocker

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