Differences between SEO and SEM

Continuity

The first difference between SEO and SEM is persistence. The bigger your budget, the more you will appear in search results, so your success with SEM depends on your budget. And when your budget runs out, your ad stops and you lose your permanence. In SEO, you can improve your position thanks to accurate and quality work. As long as you don't make mistakes and keep up with algorithm changes, you can maintain this permanence.

Speed

The second difference between SEO and SEM is speed. SEM research produces results faster than "SEO". You can see the results of your advertising campaigns within 1 day and review the metrics. You can stop, pause or resume advertising at any time.
SEO, on the other hand, requires long-term work and it is impossible to achieve results in a day. A period of 3-4 months should pass to understand the impact and effectiveness of "SEO".

Cost

One of the differences between SEO and SEM is budget. Compared to SEM, SEO service is free. The cost per click for keywords targeted in SEM varies based on other advertisers' bids and may increase with the level of competition. In short, SEM is paid and SEO is free.

CTR (Click-through Rate)

According to research, internet users prefer "SEO" in 80% of search results and "SEM" in 20%. Because sites that look like ads are not seen as a reliable source, and that's why web pages that look organic are more likely to be clicked. So, one of the differences between SEO and SEM is the click-through rate.

Content quality

Because the content on SEM is for commercial purposes, visitors are not satisfied. In "SEO", the main goal is to benefit the user. This is one of the differences between them.