A certificate buyers can verify.
Every certified check creates proof that travels with the device — clear, scannable, and tamper-evident.
Synapse Certificate
Certified Jun 2026
iPhone 14 Pro · 256 GB
A — Excellent
- Battery health
- 96%
- Reference
- SYN-7Q4K-2F9D
- Display & touch
- Front & rear cameras
- Face ID / sensors
- Speakers & mic
- Battery health
- Buttons & haptics
- Wi-Fi & cellular
- Find My cleared
The right details. Nothing personal.
A certificate carries the facts a buyer needs to trust a device — and none of the data that should stay private.
Device model
The iPhone model, stated plainly.
iOS version
The software version at inspection time.
Capacity
Storage capacity of the device.
Pass / fail counts
How many of the 50 checks passed and failed.
Inspection date
When the certified check was run.
Validity
Whether the certificate is currently valid.
Grade / result
The overall result of the inspection.
Scannable reference
A unique reference buyers scan to verify.
Verification in seconds.
No login, no account, no friction — a buyer goes from scan to confirmed condition in three steps.
- 01
Buyer scans
The buyer scans the reference on the listing or the device — no login or account required.
- 02
Synapse checks the record
The scannable reference resolves to the live, server-issued record for that exact inspection.
- 03
Buyer sees validity and summary
The buyer sees whether the certificate is valid, plus the device facts and inspection summary.
Proof that cannot be edited like a screenshot.
A certificate is not an image you can crop or fake. It is a live, server-issued record that buyers check directly.
Server-issued
Every certificate is issued by Synapse and tied to a real inspection run — not typed up by hand.
Verification-aware
Each scan checks the live record, so a buyer always sees the current state, not a stale copy.
Refund invalidation
A refunded purchase invalidates the certificate, so proof stays tied to a paid, completed check.
Public
Anyone with the reference can verify it — buyers do not have to trust a screenshot you sent them.
No login
Verification is open to the buyer with no account, so checking proof takes seconds.
Proof your buyers can act on.
Wherever you sell, a verifiable certificate turns a condition claim into something a buyer can confirm.
eBay
Add the reference to listings so buyers can confirm condition before they bid or buy.
Swappa
Back your listing with a documented inspection on a marketplace built around device condition.
Back Market
Support consistent grading with proof that travels with each refurbished device.
Wholesale lots
Attach certificates to the units in a lot so wholesale buyers know what they are getting.
Buy-back counters
Document condition at intake so the record is clear for everyone downstream.
Repair shop resale
Sell repaired devices with verifiable proof that the hardware passed inspection.
Certificate questions, answered
What a Synapse certificate shows, how buyers verify it, and why it is tamper-evident.
What is a Synapse certificate?
A Synapse certificate is server-issued, tamper-evident proof of a certified check. It shows non-identifying device facts — model, iOS version, capacity, pass and fail counts, inspection date, validity, and result — plus a scannable reference any buyer can verify.
How does a buyer verify a certificate?
The buyer scans the reference. It resolves to the live record for that exact inspection, and the buyer sees the certificate validity and a summary of the device facts. No login or account is required.
Does the certificate include personal information?
No. A certificate shows non-identifying device facts only. It never includes personal data, accounts, or anything tied to a specific person.
Can a certificate be edited or faked like a screenshot?
No. Certificates are server-issued and verification-aware, so a buyer checks the live record rather than an image you sent. A refunded purchase invalidates the certificate, keeping proof tied to a real, paid inspection.
Is a Synapse certificate the same as an Apple certificate?
No. Synapse is independent device-inspection software for used and refurbished iPhones. Apple and iPhone are trademarks of Apple Inc. Synapse is not affiliated with or endorsed by Apple Inc.
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.