# PortMaster

> Network ports lookup & quizzes. Add custom ports and master exam-style scenarios

Canonical page: [https://chrome-stats.com/d/com.netsagestudios.portmaster](https://chrome-stats.com/d/com.netsagestudios.portmaster)

## Overview

- **ID:** `com.netsagestudios.portmaster`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** NetSageStudios
- **Category:** PRODUCTIVITY
- **Downloads:** 1,594
- **Version:** 1.1.1
- **Last updated:** 2026-08-17
- **First published:** 2025-10-25
- **Publisher country:** US
- **Size:** 25 MB
- **Data as of:** 2026-09-14
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.netsagestudios.portmaster)
- **Privacy policy:** [https://portmaster-3f435.web.app/privacy.html](https://portmaster-3f435.web.app/privacy.html)

## Description

PortMaster is a fast, offline reference and trainer for TCP/UDP ports. Look up services, learn what each port is used for, and practice with quizzes—including CompTIA-style scenarios for real-world prep.<br><br>Key features<br>• Port lookup &amp; details — Search by number, service, or protocol and view clear descriptions.<br>• Notes — Add your own reminders to any port entry.<br>• Favorites — Star important ports for quick access.<br>• Quiz (Normal) — Four-choice questions drawn from the catalog; optional timer; review with correct answers.<br>• Clean, responsive UI — Built to be readable and snappy on phones and tablets.<br>• Works offline — No sign-in required and no connection needed.<br><br>Pro upgrade (one-time)<br>• Hard Mode (Scenario) — Real-world, CompTIA-style questions.<br>• Question Count — Run longer sets: 25 or 50 questions.<br>• Custom Ports — Add and remove your own port definitions.<br>• Export Favorites — Share or save as CSV / JSON.<br>• No ads. Works fully offline.<br><br>Who it’s for<br>• Students preparing for A+, Network+, Security+, and other IT exams.<br>• Sysadmins, network engineers, and help-desk teams who need a quick ports reference.<br>• Anyone who wants to memorize common ports and protocols faster.<br><br>Privacy<br>No account required. Your data stays on your device; exports are created locally only.

## Rankings

- #1,016,001 — Overall

## Permissions and access

### Permissions

- `android.permission.ACCESS_ADSERVICES_AD_ID`
- `android.permission.ACCESS_ADSERVICES_ATTRIBUTION`
- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.FOREGROUND_SERVICE`
- `android.permission.INTERNET`
- `android.permission.POST_NOTIFICATIONS`
- `android.permission.RECEIVE_BOOT_COMPLETED`
- `android.permission.VIBRATE`
- `android.permission.WAKE_LOCK`
- `com.android.vending.BILLING`
- `com.android.vending.CHECK_LICENSE`
- `com.google.android.c2dm.permission.RECEIVE`
- `com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE`
- `com.google.android.gms.permission.AD_ID`
- `com.google.android.providers.gsf.permission.READ_GSERVICES`
- `com.netsagestudios.portmaster.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`

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