Free

Details

  • Released
  • Updated
  • March 6, 2022
  • March 6, 2026

Features

Key Genius screenshot #1 for iPhone
Key Genius screenshot #2 for iPhone
Key Genius screenshot #3 for iPhone
Key Genius screenshot #4 for iPhone
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About

Easily program new car keys at home using your smartphone. Compatible with thousands of vehicle models, this app guides you through the DIY installation process after receiving a pre-cut key.

DIY car key pairing
Compatible with thousands of vehicles
Step-by-step phone instructions
Home installation
Pre-cut key delivery
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What's New in Key Genius

1.15

March 6, 2026

fix some bugs

User reviews

App does not work with FORD vehicles.

Just found out that the EZ Installer/ Key genius no longer works for Ford vehicles. BUYER BEWARE!!! Bait and switch

A jumbled mess

I’m pairing two new keys with remote unlocks for a Toyota Corolla. The instructions on the insert that comes with the module lists commands and prompts that the app doesn’t have! The app bounces around, has touch buttons without a link (dead), and will lurch from one page to another without input. I eventually paired my keys without any idea - from the app - how that happened. I could never get the remote buttons to work. A mess. I paired both keys but the app says I paired 5!
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Does not work

Could not get the device to pair with my phone. Do better.

App was unsuccessful at pairing key and remote

App was undone to pair multiple keys and remotes, and blade key pairing did not work despite my following instructions and my vehicle being on the compatibility list on Car Keys Express’ website.

A car Key Express agent had me try pairing the key and remote separately, which was not in the app or EZ installer instructions, and that was also unsuccessful.

Ultimately the app and spare key and remote I ordered did nothing useful for me. My advice to others is seek a different source for spare keys for your vehicle.
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Worked for 2012 Mazda

This worked surprisingly well. I had to pair the transponder key (physical cut key) and the buttons part of the fob in two passes. The sequence it had me follow (including opening the door three times) felt like borderline voodoo, but it worked!!

Developer apps

FAQ

What does the Key Genius app do?

The Key Genius app allows you to program and pair new car keys to your vehicle yourself, at home. It guides you through the process after you receive a pre-cut key from their partner store.

How do I get a new car key to use with the app?

You need to purchase a key from CarKeysExpress.com/store. Once purchased, you submit a photo of your key, and they will ship you a key that is pre-cut and ready for pairing with the app.

Is the app compatible with my car?

The DIY installer is compatible with thousands of vehicle makes and models, making it a widely applicable solution for many car owners. It's recommended to check compatibility before purchasing a key.

How does the pairing process work?

After receiving your pre-cut key, you download the Key Genius app. You then plug the provided installer into your vehicle's diagnostic port and follow the simple, step-by-step instructions displayed on your phone.

Does the app cost money to use?

The app itself is free to download and use for guiding the installation. The cost is associated with purchasing the pre-cut car key from the partner store, which is a one-time purchase for the key and its programming service.