There is no "app" to give you an ultra-wide camera lens. You can take a picture taken with a "regular" lens and simulate having taken that photo with a "telephoto" lens by chopping off the edges (with a loss of resolution). But a picture taken with a "regular" lens has none of the "extra" parts of the scene around the edges that would have been recorded by a wide-angle lens.
The closest you could get is to to take a Panorama (which requires you to move the phone around so it can see more parts of the scene), or to use some AI program that adds fake information around the edges (that might not reflect the actual scene very well).
Basically, if you need to take wide-angle photos, there is no substitute for a wide-angle camera.