codebeat - Automated code review for Swift
Website Grader - Grade your website's strengths and weaknesses in seconds.
Codacy - Automatically reviews code style, security, duplication, complexity, and coverage on every change while tracking code quality throughout your sprints.
Checkbot - Checkbot will boost the SEO, speed and security of your site by checking you're following 50+ web best practices. Browser extension with free and paid plans.
Salesbolt - Your customers will change jobs every 36 months on average. Customer job changes present a hidden churn risk, turn this risk into an opportunity with Salesbolt's Contact Tracking AI.
PageSpeed Ninja - One-click page speed boost for WordPress