Gnome Voice – AI-based voice forgery (deep voice) and voice phishing risk detection assistance service during calls

🔍 1. Service Introduction
Gnome Voice is an auxiliary safety tool that detects voice forgery (deep voice) and voice phishing risk signals in real-time during calls, helping users exercise caution.
The app analyzes certain characteristics of voices processed internally by the device during calls and provides immediate warnings with small overlay cards when suspicious patterns are detected.

※ This service is for reference only and cannot perfectly detect all threats.

🔐 2. Key Features
✔ 2.1 Voice forgery (deep voice) suspicion detection
Detects certain abnormal patterns based on voice characteristics and provides warnings if synthetic voices are suspected.

✔ 2.2 Voice phishing risk signal detection
It analyzes conversation flow in real-time and provides step-by-step visual guidance, such as "Danger" and "Caution."

✔ 2.3 Overlay Notification on Call Screen
This notification appears as a small card at the top of the screen during a call, making it instantly recognizable.

✔ 2.4 Real-time On-Device Processing
Call audio is analyzed only on the device and is not transmitted or stored on servers.

🧩 3. Accessibility Service Usage Guide
GNOME Voice uses Android's AccessibilityService API to automatically detect when a call starts or ends and execute AI analysis functions.

The Accessibility Service is used only for the following purposes:
• Detecting screen state changes (typeWindowStateChanged) in the phone app
• Automatically executing analysis functions by identifying when a call is connected or ended
• Triggering a small overlay warning card to the user

The Accessibility Service never performs the following tasks: • Reads or stores user on-screen text (messages, chats, passwords, etc.)
• Collects user input information, such as keystrokes and touch inputs
• Changes settings, blocks operations, and uses advertising for other apps
• Disguises itself as a disability assistance feature or operates in a hidden manner

GNOME Voice is not a disability assistance app, but rather an assistive app designed to help detect risks during calls. Accessibility services are used solely for the purpose of call status detection. Users can disable the service at any time in Settings.

🔒 4. Privacy and Data Protection
GNOME Voice complies with Google Play privacy requirements and local laws and uses only the minimum amount of data necessary.

Information collected and processed:
• Voice data: Real-time analysis on the device and immediately discarded (no server transmission)
• Analysis results (risk scores, etc.): May be used in an anonymized form to improve service quality
• Device information (OS/model name): For error analysis and inquiry response
• Account information: Login and user management
• Personal messages, photos, videos, files, address books, recordings, etc. are never collected.

Privacy Policy: https://www.metacrowd.ai/terms?tab=privacy

Delete Account: https://www.metacrowd.ai/acc_delete

🎧 5. Permissions
• Microphone (RECORD_AUDIO)
Required to analyze certain characteristics of call audio (no recording files are saved or transmitted)

• Phone State (READ_PHONE_STATE)
To detect call start/end

• Overlay (SYSTEM_ALERT_WINDOW)
Displays analysis cards on the call screen

• Foreground Service (MICROPHONE)
Prevents AI analysis from interrupting during calls

• Notifications (POST_NOTIFICATIONS)
Provides risk warnings even when the device screen is off

⚠️ 6. Notes
• All analysis results are for reference only and cannot replace accurate judgment.
• Not all voice phishing and forgery can be perfectly detected. • Any suspicious contacts should always be directly verified with the official authorities.

• This is not a legal or financial advice service.

👍 7. Recommended for:
• Those who want to prevent their family members from being victimized by voice phishing.
• Those who frequently receive calls from unfamiliar numbers or organizations.
• Those concerned about AI voice fraud.
• Those who have difficulty maintaining alertness during calls and need an assistive device.

Gnome Voice is a secure assistive device based on real-time on-device analysis.

It is designed to not store or transmit call content.