---
title: "Firewall - Spam Call Blocker — App Overview"
url: https://marlvel.ai/intel-report/utilities/firewall-spam-call-blocker
category: Utilities
developer: Ad Hoc Labs, Inc
platforms: ios
rating: 4.3 (1.6K ratings)
pricing: subscription
report_level: overview
generated: 2026-04-17
last_verified: "2026-04-17T11:48:21.910Z"
---

<!-- SECTION: Key Insight -->
> **Key Insight:** 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.

<!-- SECTION: Quick Facts -->
| Metric | Value |
|--------|-------|
| Category | Utilities |
| Rating | 4.3 ★ (1.6K) |
| Pricing | subscription |
| Platforms | iOS |
| Latest Version (iOS) | 1.3 |
| Developer | Ad Hoc Labs, Inc |

<!-- SECTION: Summary -->
## 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.

<!-- SECTION: Key Features -->
## Key Features

- **Whitelist-based Call Blocking**: Blocks all incoming calls except those from approved contacts, effectively filtering out robocalls and unknown numbers.
- **SMS Spam Blocker**: Filters unwanted text messages to reduce disruptions and maintain user privacy.
- **Visual Voicemail**: Provides a system to screen and manage messages left by callers.
- **Anonymous Outbound Calling**: Allows users to make calls while protecting their personal phone number.

<!-- SECTION: Target Audience -->
## Who is it for?

Users seeking to eliminate unwanted spam calls and maintain strict control over their incoming communication channels.

<!-- SECTION: Links -->
## Links

- [App Store](https://apps.apple.com/us/app/firewall-spam-call-blocker/id1447702878?uo=4)
- [Full Intelligence Report](https://marlvel.ai/intel-report/utilities/firewall-spam-call-blocker)

---
*This is an overview report. Sentiment analysis, competitive landscape, and SWOT analysis are available in the [full intelligence report](https://marlvel.ai/intel-report/utilities/firewall-spam-call-blocker).*
*Generated by [Marlvel.ai](https://marlvel.ai) — Independent app intelligence.*