App Debug Assistant
Junjie Li Developer Tools iPhoneiPadiPod touch
App Debug Assistant is a free Developer Tools app for iPhone and iPad by Junjie Li. Rated 3.7/5 from 3 ratings. Requires iOS 16.0. Updated May 25, 2026.
- Rating
- 3.7
- 3 ratings
- Price
- Free
- on the App Store
- Size
- 32 MB
- Age 4+
- Updated
- May 25
- 2026 · v3.0.1
Screenshots
About App Debug Assistant
App Debug Assistant is a versatile toolkit designed for developers and testers, streamlining your daily debugging workflow. 【Device Info】 • IDFA Viewer - Instantly access the device advertising identifier with one-tap copy for attribution testing • Device Details - View comprehensive device info including model, screen, memory, storage, battery, and system version 【Sensor Debugging】 • Motion & Attitude - Accelerometer, gyroscope, magnetometer, and fused device-motion data with live multi-axis readings for motion- and AR-related debugging • Environment & Activity - Barometer (pressure and relative altitude), pedometer, and motion-activity recognition for health- and context-aware features • Location & Heading - GPS-style location plus true and magnetic heading for maps and compass-style behavior • Device & Ambient Status - Proximity, screen brightness, device orientation, thermal state, and microphone level metering to troubleshoot hardware, sensors, and permissions 【Bluetooth Debugging】 • Device Scan - Discover nearby BLE peripherals with live name, identifier, and RSSI to quickly find test targets • Connect & GATT - Browse services and characteristics after connecting; read, write, and subscribe to notifications to verify protocols and payloads • Debug Helpers - Hex data display and one-tap UUID copy to speed up firmware and app integration 【Special Tools】 • Text Sync - Real-time text synchronization between your phone and computer over LAN • File Transfer - Wirelessly transfer files and photos via browser on the same WiFi network • APNs - Quickly test the push notification function, supporting both P12 and P8 certificate formats for easy debugging of push services. 【QR Code Tools】 • QR Scanner - Scan with camera or recognize from photos, quickly open links or copy content • QR Generator - Create QR codes from any text or URL for easy sharing 【Use Cases】 • Ad SDK Testing - Quick IDFA access for attribution verification • Device Debugging - Sync test URLs and config parameters to your phone • Bug Reporting - Copy device info for complete issue reports • Cross-device Workflow - Fast file and text transfer between devices • Sensor Debugging - Verify raw readings and permission flows on real hardware to narrow down sensor-related issues faster • Bluetooth Debugging - Scan and connect to BLE peripherals to validate GATT services, characteristics, and data exchange 【Secure & Reliable】 • Local data storage to protect your privacy and sensitive information Simple. Efficient. Essential for developers.
What’s new
Version 3.0.1 · Updated May 25, 2026
Latest Update - Added sensor debugging tool (live accelerometer, gyroscope, magnetometer, and more) - Added Bluetooth debugging (BLE scan, GATT read/write and notifications, hex data display, and more) - Added network debugging tool - Optimized file synchronization function - Added APNs debugging tool Recent Updates - Supported device information query - Supported device IDFA retrieval - Supported cross-device synchronization of text and files - Supported QR code scanning, generation, opening and sharing - Achieved 100% international support for the app More new features are coming soon!
App privacy
The developer, Junjie Li, reported these privacy practices to Apple.
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers: Device ID
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Identifiers: Device ID
- Diagnostics: Crash Data, Performance Data
Used for: Third-Party Advertising, Analytics
Alternatives to App Debug Assistant
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| App Debug Assistant | 3.7 / 5 (3 ratings) | Free | May 25, 2026 | |
| LogCat Analyzer: Debug Toolkit | 1.0 / 5 (1) | Free | Aug 11, 2026 | Compare |
| Bluetooth Tool - Debug | – | Free | Oct 12, 2026 | Compare |
| Wireless Debug | 3.0 / 5 (2) | Free | Jun 12, 2026 | Compare |
| Pythonica: Code and Debug | 5.0 / 5 (2) | Free | Oct 2, 2025 | Compare |
| WebDebug - Web debugging tool | 4.5 / 5 (24) | Free | Oct 10, 2026 | Compare |
| DevMate - Connect & Debug | 3.3 / 5 (8) | Free | Jul 1, 2026 | Compare |