About CheckAmm
The trust layer for Nigeria's used-phone market
Most phones in Nigeria are bought second-hand — yet buyers have no way to know if a device is stolen, blacklisted, or even fully working before they pay. CheckAmm exists to change that: verify before you buy.
Our mission
Fraud is the norm in the used-device market, not the exception — and it costs honest people millions every year. CheckAmm brings the same trust infrastructure that Carfax brought to used cars, but for phones and laptops: an IMEI risk score, full ownership history, browser-based hardware diagnostics, and a verified marketplace — so every transaction can be safe.
The Founder
Suleiman Ahmed
Founder & CEO, CheckAmm
Suleiman Ahmed founded CheckAmm to fix a problem he watched play out again and again: people losing money to stolen and faulty phones because there was no way to check a device before paying. He is building CheckAmm — under the GadgetVault umbrella — as the trust and verification layer every device transaction in Nigeria (and beyond) can pass through.
Nigeria ahmed@checkamm.com
“In a market built on distrust, the winning product isn't another marketplace — it's the layer that makes every deal safe. That's what we're building.”
What we build
Three layers of trust for anyone buying or selling a device.
IMEI verification
Check any phone's IMEI against stolen, blacklisted and ownership records before money changes hands.
Hardware diagnostics
Test a device's camera, screen, speakers, mic and sensors right in the browser — no app to install.
Verified marketplace
Buy and sell used devices with confidence — every listing is IMEI-checked and sellers are accountable.
What we believe
Verify before you buy — trust should be the default, not the exception.
Built in Nigeria, for the way Nigerians actually buy and sell phones.
Protect ownership — your vault is proof a device is really yours.
No app required — anyone can verify a device from any browser.
Verify before you buy
Check any phone's IMEI or run a full hardware test — free, in your browser.