is it legal to share app for free using internet????

I am going to make an app as project and want to share it with others so that they can know what i made… actually i want to make an application that has 3d models of my college… is it legal…???

i am a student… but as it involves college models, and college has more revenue than unity personal limit…is it good do develop and share…???

You will have to ask whoever made the models if it is legal to publish them as standalone assets.