In case you missed it: Fossify (A fork of Simple Mobile Tools)

Fossify Gallery (fork of Simple Gallery), Fossify File Manager (fork of Simple File Manager) and Fossify Calendar (fork of Simple Calendar) are now available for download on F-Droid.

(Simple Mobile Tools suite was acquired by an Israeli adware company)

About Fossify: Fossify is all about community-backed, open-source, and ad-free mobile apps. A fork of the SimpleMobileTools, which is no longer maintained, and we're here to continue the legacy, bringing simple and private tech to everyone.