DeviceTestApp vs Synapse

DeviceTestApp is a professional iPhone hardware diagnostic tool designed for device inspection, repair, and second-hand trading. Launch a single test to automatically complete 29 core hardware checks and quickly determine device health. 【Key Features】 • 29 Comprehensive Tests: Charging, Wi-Fi, Bluetooth, Network, Touchscreen, LCD, Multi-touch, Face ID, Front/Bottom/Rear Microphones, Speaker, Vibration Motor, Standard/Telephoto/Ultra-wide/Front Cameras, Flashlight, NFC, Phone Call, Proximity Sensor, Volume Up/Down, Power Button, Mute Switch, Earpiece, Gyroscope, GPS Location • Automated Pipeline: Most tests auto-detect pass or fail, minimizing manual operation • Live Face Detection: Front camera live preview with TrueDepth sensor hardware-level validation • Report Upload: One-tap upload test reports to your PC management system • PC Remote Control: Remotely start tests, retest failed items, and adjust test order from your computer • Multi-language: Automatically switches between Chinese and English based on system language • Custom Order: Drag to rearrange test execution order based on your workflow • USB Offline Mode: Export test results via USB even without network 【Use Cases】 • Pre-sale inspection for second-hand phones • Post-repair functionality verification • Factory production line quality control • Enterprise batch device management 【Privacy】 This app only temporarily accesses camera, microphone, Bluetooth, and location hardware during testing. No personal data is collected, stored, or uploaded. All test data is saved locally or sent only to the user's self-hosted LAN server.

Buying or selling a used iPhone? Know what works before money changes hands. Synapse helps you test key iPhone hardware — including cameras, speakers, microphones, sensors, buttons, connectivity, and biometrics — then creates a clear pass/fail device report you can share with a buyer, seller, repair shop, or resale listing. QUICK CHECK — FREE Run a basic test in minutes. No purchase required. Tests include: • Display • Touchscreen • Rear camera • Wi-Fi • Bluetooth FULL DIAGNOSTIC Unlock the complete hardware test suite and generate a shareable device report. Full Diagnostic includes: • Front camera and flashlight • Video recording • Microphones and speakers • Proximity sensor • Motion sensors • Screen rotation • Face ID or Touch ID sensor check • Vibration motor • Volume, lock, and mute buttons • GPS / location accuracy • System integrity indicators • Shareable pass/fail report with device details DEVICE CHECKS Purchase Device Checks in the app and save them to your account. Available options: • Single Device Check • 3 Device Checks • 10 Device Checks Sign in with Apple or email to save your purchased Device Checks, view your remaining checks, and use them on this device or another signed-in device. KEY FEATURES • Free Quick Check • Full Diagnostic hardware testing • Shareable pass/fail device report • Device Checks saved to your account • View remaining Device Checks in your Profile • Useful for buying, selling, repairing, or verifying a used iPhone PRIVACY Synapse runs hardware tests on your device. Your account is used to save purchased Device Checks and help you access them across signed-in devices. Permissions may be requested for camera, microphone, location during GPS testing, motion sensors, Bluetooth, Face ID / Touch ID checks, and local network features when needed. Apple, iPhone, Face ID, and Touch ID are trademarks of Apple Inc.