Grammarly - Clear, effective, mistake-free writing everywhere you type.
MailChimp - MailChimp is the best way to design, send, and share email newsletters.
Cognifyd - The smart editor that helps you write business content
Brevo - Innovative online Email Marketing solution to manage your contacts, create & send your newsletters and track your results. More than 80 000 clients. Best prices and attractive features.
Kibin - Professional Proofreading as a Service
Campaign Monitor - Email marketing software built for designers and their clients to run successful email campaigns.