You can often find the latest builds on release-apk.com (registration may be required).
If you are looking to or extract split APKs directly on your Android device rather than merging them into one file, these apps are more standard: Download Split APKs Packer app for Android zip
A versatile manager that can extract installed apps and compress them into a zip file for backup. You can often find the latest builds on release-apk
The most popular open-source tool for installing .apks and .xapk files. It is available on the Google Play Store , F-Droid , and GitHub . It is available on the Google Play Store
Since this is a third-party utility not hosted on official app stores, it is primarily available through community-driven developer forums and GitHub:
The tool is frequently reshared on sites like AndnixSH.
A similar open-source bash script to combine split APKs is available on TheArmKing's GitHub . Top Alternatives for Android