iPhone diagnostic software built for resale.
Run the hardware and resale-risk checks that matter before a used iPhone reaches a buyer. Synapse turns a hands-on inspection into a clear pass or fail you can stand behind.
- Full 50-point inspection
- Measured on-device
- Verifiable certificate
Results measured on the device, not estimated.
Synapse reads each subsystem directly from the iPhone in front of you. The companion app exercises the speakers, cameras, sensors, and buttons and records what actually happened — no guesswork, no self-reported condition.
The outcome is a concrete pass or fail for every point, so two technicians grading the same phone reach the same result.
- Hands-on checks driven from the host app
- Pass or fail recorded per inspection point
- Consistent results across every bench
The checks that protect a resale, built in.
Beyond hardware, Synapse confirms the status that decides whether a phone is safe to sell: battery health, Find My and activation-lock state, and verification that the device was wiped.
Catching these before a phone ships helps reduce returns, disputes, and locked-device surprises for your buyer.
- Battery health reading
- Find My and activation-lock status
- Wipe verification
Every completed inspection becomes proof.
When the inspection finishes, Synapse issues a tamper-evident certificate. It is server-issued and publicly verifiable through a scannable reference — no login required for the buyer.
The certificate shows device facts and pass/fail counts, giving the next owner a verifiable record of condition.
A 50-point inspection of the whole device
Every used iPhone runs the same checklist, so grading stays consistent from one bench to the next.
Display & touch
- Display
- Touch
- Rotation
Cameras & flash
- Wide
- Ultra-wide
- Telephoto
- Front
- Flash
- Video
Audio
- Ear speaker
- Loud speaker
- Microphones
Sensors
- Proximity
- Motion
- Ambient light
Biometrics & haptics
- Face ID
- Touch ID
- Vibration
- Haptics
Buttons
- Volume
- Lock
- Action button
Connectivity
- Wi-Fi
- Bluetooth
- GPS
- Cellular
Resale risk
- Battery health
- Find My
- Activation lock
- Wipe verification
A 50-point inspection covering hardware, sensors, connectivity, and resale-risk status.
From a quick once-over to a documented inspection
Without certified checks
- Condition graded by eye and memory
- Inconsistent results between technicians
- Resale risks like activation lock found too late
- Nothing to show the buyer but a description
With Synapse
- A 50-point inspection measured on-device
- The same checklist on every bench
- Find My, activation-lock, and wipe checks built in
- A verifiable certificate the buyer can scan
Questions, answered
Common questions about this part of Synapse.
What does Synapse test?
Synapse runs a 50-point inspection covering display and touch, the wide, ultra-wide, telephoto, and front cameras, flash and video, ear and loud speakers, microphones, proximity, motion, and ambient-light sensors, Face ID and Touch ID, vibration and haptics, the volume, lock, and action buttons, Wi-Fi, Bluetooth, GPS, and cellular, plus battery health, Find My and activation-lock status, and wipe verification.
Does Synapse test Face ID?
Yes. Face ID and Touch ID are part of the 50-point inspection, alongside the other biometrics and sensors. Each check is exercised on-device and recorded as a pass or fail.
Does Synapse check battery health?
Yes. Battery health is one of the resale-risk checks read directly from the device, so its condition is documented as part of the certified check rather than estimated.
Does Synapse check Find My or activation lock?
Yes. Synapse confirms Find My and activation-lock status and verifies the device was wiped, helping reduce the risk of shipping a locked phone.
Does Synapse create a certificate after testing?
Yes. Every completed inspection issues a tamper-evident certificate that is publicly verifiable through a scannable reference, with no login required for the buyer.
Certify your next phone with confidence
Subscribe your shop in minutes. Run the 50-point inspection, issue verifiable certificates, and grade every device the same way — every time.