https://www.valuehits.com/blogs/difference-between-seo-and-sem

Marketers even today are yet to conclude whether SEM is better for business marketing or should they be sticking with traditional SEO. However, if you are a business, you can apply both SEM and SEO to attract website visitors. The only difference here is SEO can get you free organic traffic, while SEM will require you to pay for each website visitor. At ValueHits, you can browse through our different SEO Services Packages, or you can hire a PPC Expert for all your needs.

Hardik Mody