High-level description
Squirrly is an SEO plugin.
Business impact
Is Squirrly SEO good?
Answer
Pros: SEO Yoast is excellent and a good product HOWEVER I feel some of their features are rudimentary - Squirrly SEO has a lot more features and optimization power I feel then Yoast premium. I've used both for a while now. ... Pros: This is the greatest SEO plugin out there for WordPress. More than a plugin, this is a comprehensive SEO suite.
Is Yoast SEO enough for WordPress SEO?
Answer
It's easily the most comprehensive SEO-related Wordpress plugin you could ask for and best of all, it's free! You do have the option to buy paid Yoast SEO extensions for some further functionality, but its most crucial features are part of the free plugin.

Free lifetime updates
- Open source design system
- Automated feature upgrades
- Templates
- Security updates

Infrastructure and security
- SSL everywhere
- Automated backups
- Log scanning and alerts
- 24/7 monitoring