Will truetone work after screen repair?

They may be reputable, but unless they are actually Apple Authorized Service they will not have access to authentic Apple parts, so it is very likely True Tone will not work. You'll also likely find a message on your phone saying you have inauthentic parts on your phone. That message never goes away, which effects trade and resale values.

If you wan to ensure no services stop working on your iPhone, have Apple or an Apple Authorized Service Provider replace your screen.

An aftermarket screen replacement service won't include access to Apple's proprietary diagnostic equipment that's supposed to do the color calibration. It also might have issues with Face ID or Touch ID.

Apple gave access to a Reuters reporter back in 2017 for a visit to their repair development lab in Sunnyvale, California.

https://www.reuters.com/article/us-apple-repair-exclusive-idUKKBN18Y0BF

In a smaller training room, a technician laid out the tools Apple uses to fix iPhone screens: special screwdrivers for the iPhone’s five- and three-lobed screws, a custom suction-cup for loosening the screen without tearing the delicate ribbon cables behind it, and a press to squeeze iPhone 7s to ensure waterproofing.

Once the new screen is mounted, the iPhone goes into the Horizon Machine, which allows Apple’s software to communicate with the fresh hardware. Over the course of 10 to 12 minutes, the machine talks to the phone’s operating system to pair the fingerprint sensor to the phone’s brain.

While that unfolds, a mechanical finger jabs the screen in multiple places to test the touch-sensitive surface. The machine also fine tunes the display and software to match the precise colors and calibration of the original.

“We design for a customer experience that exceeds anything our competitors try to do,” said Naumann, Apple’s service chief. “We endeavor to make it right at the same standard as when the customer bought the product.”

Hello,

You should only have your screen repaired at an authorized Apple outlet:

iPhone Screen Repair

Good luck.