If a service asks for your password to “automate” the views, run away. This gives them full access to your account, allowing them to post spam, send DMs to your followers, or delete your content.
Instagram is now a search engine. Use keywords in your name field and bio. For example, instead of "John Smith," put "John Smith | Travel Photographer | Bali & Japan." When people search for travel photography, your profile appears.
Enter the username of the public Instagram profile you wish to view.