Free open source alternative app list of Acorn 7 :

Lemon Cleaner

Tencent produced a new Mac cleaning tool official download address: professional deep cleaning, keep Mac fresh and clean; Browser privacy cleaning to avoid sensitive information disclosure; Five deep cleaning gadgets, all-round clean up excess files free up space, help you better understand your Mac.

FreemacOS

Others are looking for free open source alternatives of following apps:

Acorn 7

Acorn 7 is a Mac image editor for editing photos and creating graphics.

AI & Machine Learning

Free open-source AI & machine learning tools.

Ad Blocker

Ad Blocker is a browser tool that removes intrusive ads and pop-ups from web pages.

AdGuard DNS

AdGuard DNS is a DNS-based service that blocks ads, trackers, and malicious websites.

Adobe Premiere Pro

Adobe Premiere Pro is a professional video editing software for film, TV, and web.

AdGuard

AdGuard is a cross-platform ad blocker that filters web content and protects privacy.