Canva is graphic and content creating software often used to create templates, videos, posters, presentations etc
Hootsuites provides you central management where you can manage all social media platform through one medium be it Instagram, Facebook, WordPress, LinkedIn, Twitter etc.
This app helps you to select the right keyword for your marketing, Moreover helps to improve your content readability
Hubspot is suitable for business owners who runs multiple marketing campaigns across various marketing channels.
KWFinder is affordable, easy to use app. Small business or startups often find it useful and user friendly