On macOS, the main built-in free option is Display Calibrator Assistant, and Option-clicking the Calibrate button unlocks its Expert Mode with more adjustment steps.

That can help a little and is better than doing nothing, but software-only calibration is limited because you’re still judging color and tone by eye. In practice, there isn’t a better free or cheap software-only option mentioned here for basic MacBook Pro display calibration.

If color accuracy matters, a hardware colorimeter is still the better solution. It measures the screen objectively and will give more reliable, repeatable results than visual matching tools like the macOS assistant.