ProspectIn is described as 'Chrome-based extension that allows you to fully automate your LinkedIn prospecting tasks while staying under the daily limits fixed by LinkedIn' and is an app in the Web Browsers category. There are five alternatives to ProspectIn for a variety of platforms, including SaaS, Chrome OS, Mac, Windows and Linux. The best alternative is Linked Helper. It's not free, so if you're looking for a free alternative, you could try eLink-Pro. Other great apps like ProspectIn are Skylead (Paid), Linked Assist - The LinkedIn Automation Tool (Paid) and Growthlead.io (Paid).
Linked Assist automates your LinkedIn marketing so that you get more time for your core business activities. The product is a powerful tool that is designed as an easy-to-use Chrome Extension that everyone can manage.