# Synapse: Device Check

> Test Phones to Buy or Sell

Canonical page: [https://chrome-stats.com/d/id6781245296](https://chrome-stats.com/d/id6781245296)

## Overview

- **ID:** `id6781245296`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Nexus Link LLC
- **Category:** Utilities
- **Rating:** 5.00 / 5 (10 ratings)
- **Version:** 2.2
- **Last updated:** 2026-07-19
- **First published:** 2026-06-29
- **Size:** 5.41 MB
- **Data as of:** 2026-09-20
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/synapse-device-check/id6781245296)
- **Website:** [https://nexuslink-byte.github.io/synapse-legal/](https://nexuslink-byte.github.io/synapse-legal/)
- **Privacy policy:** [https://nexuslink-byte.github.io/synapse-legal/](https://nexuslink-byte.github.io/synapse-legal/)

## Description

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.

## Rankings

- #319,926 — Overall

## Similar extensions and apps

- [PhoneCheck Pro](https://chrome-stats.com/d/id6765871402)
- [Device Tester - Phone Check](https://chrome-stats.com/d/id6744391732)
- [My Phone Doctor](https://chrome-stats.com/d/id6755456093) — 4.70 / 5
- [Touchscreen Pro: Phone Test](https://chrome-stats.com/d/id6759000422) — 5.00 / 5
- [Device Tester: Check & Monitor](https://chrome-stats.com/d/id6739738569) — 4.60 / 5
- [PhoneVet](https://chrome-stats.com/d/id6760732381)
- [DeepCheck: The iPhone Report](https://chrome-stats.com/d/id6752374036)
- [Check My Device : 40+ Tests](https://chrome-stats.com/d/id1296632315) — 4.50 / 5
- [Test & Check for iPhone](https://chrome-stats.com/d/id1022281157) — 3.90 / 5
- [Used Phone Inspector](https://chrome-stats.com/d/id6761838368)
- [ZOXS CHECK: Check it yourself](https://chrome-stats.com/d/id1574759494)
- [Mobilemasr - Phone Checker](https://chrome-stats.com/d/id1588316737) — 5.00 / 5

---

Source: [Chrome-Stats](https://chrome-stats.com/d/id6781245296)