I cannot say this service is safe because of its name and the risky system they use to grow your presence on Instagram.
If you can get a response from sending them an email, you might be able to use their service. Otherwise, I would say it is moderately to highly risky.
Their bot system, lack of transparency about their system, and their copyright violation are three reasons I won’t recommend this service for boosting your Instagram growth.
I think this service is a high-risk for your Instagram account, but it’s your choice of whether or not to use it.
From what have ascertained, this is a similar service as Instagress was, (which was shut down), only more expensive.
Always be watchful of companies that offer Instagram growth services that openly admit that they use an Instagram bot. If they get shut down, your account is at risk.
Besides being unsafe to use, KingInsta itself is at risk for violating Instagram’s copyright by using “insta” in their name. It’s likely they will be shut down if they don’t just disappear. Run; don’t walk away from this service.
I found out this site isn’t popular, and it shouldn’t be popular since it’s not safe. ScamAnalyze also says it’s not popular and expands on that thought here.
Always proceed with caution when it comes to services that use ‘insta’, ‘gram’, or ‘IG’ in their names and those that use botting tech.