i am makeing a 2d app like Doctor xClinic

this app totally based on 2d images and alpha tweening of images.So should i use UI image(canvas image) object or 2d sprite image object.what is best practice.i am making game like this

Use 2d sprite Image instead of UI Image.

  1. Enabling - disabling UI elements is really GC expensive.
  2. Applying physics in UI may result unexpected behavior because UI is only processed in the main Update/LateUpdate loop. Changes in FixedUpdate do not apply until the next frame.
  3. Moving of UI elements also difficult compared to 2d Sprites.