SERPStream is a 100% free SEO tool. Members can keep track of their site's Search Engine Results Page position with updates as frequent as a dozen times a day. SERPStream have a great newsletter, sends email alerts, and have a state of the art keyword rank tracking dashboard.
Serpstat - Search analytics, Rank tracking, Backlink analysis and Site Audit tool.
Wordtune - AI-powered writing companion
SEO PowerSuite - Get all SEO tools in one pack - download free edition of SEO PowerSuite and get top 10 rankings for your site on Google and other search engines!
Grammarly - Clear, effective, mistake-free writing everywhere you type.
SEMRush - All-in-one Marketing Toolkit for digital marketing professionals.
Anyword - An AI platform for creating effective marketing copy, trained on tens of millions of successful ads.