ScrapeBox or Hunter.io?

Trying to build links and as you know, outreach is a major part of contacting authors and collaborating for backlinks. Scrapebox offers a lifetime deal whereas hunter is a monthly subscription service which in the long run can get expensive. I use Ahrefs and have the list of backlink opportunities already, I want to scrape their email addresses. Been using Hunter's free plan for a while and seems fine. I Want to know how it's like using ScrapeBox? Does it perform a good job on scraping email addresses from a csv list? Any particular youtube tutorials that you can recommend?