The SEO tools help us determine the website's health and help perform SEO efficiently. Some SEO tools are Google Analytics, Keyword Hero, penguin, and many more.
Technically, SEO is free. There are some agencies that help you perform SEO, and it is chargeable based on your business and requirements.
The time duration for SEO to be a success for your website is unpredictable. It is way longer and would range from 6 months to a year as a minimum. SEO professionals can make it easy and shorter with their expertise and tactics.