Lenses for smartphones

My niece like most of her generation is very adept using a smart phone. She is going to Tanzania and has asked me if there are any good quality lenses that can be attached to her smart phone?
I've explained the basics of telephoto lenses and the need for high quality glass and a physical distance between sensor and front element.
My instinct is these lenses will be limited and she would be better off taking good photos of things she can get close too without being devoured, bitten or poisoned.
Anyone tried these lenses?
Cheers Bill
I've explained the basics of telephoto lenses and the need for high quality glass and a physical distance between sensor and front element.
My instinct is these lenses will be limited and she would be better off taking good photos of things she can get close too without being devoured, bitten or poisoned.
Anyone tried these lenses?
Cheers Bill