The difference is the starting point, and it changes what the output is good for.
A text-to-image model takes a description and invents a subject to match it. Prompt one for "a woman in a red coat" and you get a convincing photograph of someone who does not exist. That is exactly right for concept art, illustration, and design work, and exactly wrong for a dating profile or a LinkedIn headshot, where the entire value depends on the person being you.
TryOnWise starts from your photo. It keeps your face and build and varies what surrounds them: the outfit, the setting, the lighting. There is no prompt engineering involved, and no Discord account, because the input is an image rather than a paragraph of description.
This is also why the two are not really competitors. If you want an imagined scene, use an image model. If you want realistic photos of yourself, or to see a specific garment on your own body, that is a different job. We maintain comparison pages for the major image models if you want to see how each one differs in detail.