# Knock Messaging

> Send and view messages instantly with secure link sharing.

Canonical page: [https://chrome-stats.com/d/com.umbrella.smartpager](https://chrome-stats.com/d/com.umbrella.smartpager)

## Overview

- **ID:** `com.umbrella.smartpager`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** BaseLine Polls
- **Category:** COMMUNICATION
- **Downloads:** 10
- **Version:** 1.9.0
- **Last updated:** 2026-03-30
- **First published:** 2026-02-26
- **Publisher country:** US
- **Size:** 30 MB
- **Data as of:** 2026-09-09
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.umbrella.smartpager)
- **Website:** [https://www.knockmessaging.com/index.html](https://www.knockmessaging.com/index.html)
- **Privacy policy:** [https://www.knockmessaging.com/privacy.html](https://www.knockmessaging.com/privacy.html)

## Description

Welcome to Knock Messaging!<br>• Send messages and media instantly<br>• View shared content quickly via secure links<br>• Lightweight and fast experience<br>• iMessage extension support (iOS)<br>• App Clip support for instant preview (iOS)<br>We’re excited to launch the first version of Knock Messaging.<br>More improvements coming soon!<br>Knock Messaging makes it easy to send secure messages and media instantly.<br><br>The app provides a shortcut tool that allows users to quickly compose and send encrypted messages while using supported messaging apps. When activated, a small floating shortcut appears on the screen, allowing the user to create and send a secure message without leaving their current conversation.<br><br>Key Features:<br>• Send encrypted messages and media instantly<br>• Lightweight floating shortcut for quick access<br>• Secure link-based message delivery<br>• Simple and fast user experience<br><br>Accessibility Service Disclosure: Knock uses the Android Accessibility Service solely to display a floating shortcut button over messaging apps, enabling you to send end-to-end encrypted messages directly from your SMS app. This service does NOT read, store, or share your SMS messages or personal data. You can disable it anytime from Android Settings &gt; Accessibility.

## Rankings

- #2,801,359 — Overall

## Permissions and access

### Permissions

- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.CAMERA`
- `android.permission.FOREGROUND_SERVICE`
- `android.permission.INTERNET`
- `android.permission.READ_MEDIA_AUDIO`
- `android.permission.READ_MEDIA_IMAGES`
- `android.permission.READ_MEDIA_VIDEO`
- `android.permission.SYSTEM_ALERT_WINDOW`
- `android.permission.USE_BIOMETRIC`
- `android.permission.USE_FINGERPRINT`
- `android.permission.WAKE_LOCK`
- `com.android.vending.CHECK_LICENSE`
- `com.umbrella.smartpager.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`

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Source: [Chrome-Stats](https://chrome-stats.com/d/com.umbrella.smartpager)