How to use this glossary
Browse alphabetically organized entries covering APK formats, patch workflows, MicroG/GmsCore, SponsorBlock, and Android TV clients.
Each term links to installation context, safety checks, and troubleshooting when the concept appears in error messages.
Bookmark terms you encounter while reading ReVanced Manager logs or community support threads.
Vanced Manager
The installer that fetched and updated Vanced and MicroG for you. Its servers went offline with the project, which is why the app now sits there doing nothing.
MicroG / GmsCore
An open reimplementation of Google Play Services. It is what let modified apps sign in to a Google account, and its decay is the usual reason old Vanced installs fail at login.
SponsorBlock
A crowdsourced database of timestamps for sponsor reads, intros, and self-promotion, which supporting apps use to skip past them automatically.
Background Playback
Audio that keeps going once the screen is off or you switch apps. Normally a paid feature on YouTube, and one of the main reasons people looked for a modified client.
Picture-in-Picture
A floating video window that stays on top of other apps. It needs both an in-app setting and an Android system permission, which is why it often appears not to work.
Patcher
A tool that modifies an app you already have rather than shipping a modified copy. This is the model ReVanced uses, and the reason there is no ReVanced APK to download.
APK
The package format Android apps ship in. Anyone can rebuild and re-sign one, which is what makes the source of a file matter so much.
Split APK
One app delivered as several files instead of a single package. It complicates patching, and it is behind a good share of failed ReVanced installs.
Root vs Non-Root
Superuser access on the device compared with a standard install. Almost everything covered here works without root, despite how often the word comes up.
Android TV Client
An app built for televisions, driven by a remote rather than a touchscreen. A phone app and a TV app are not interchangeable, even when they carry the same name.
How to Use This Vanced and ReVanced Glossary
Most people arrive at one of these terms while stuck on something specific, so each entry reads on its own. There is a rough order to them, though, and following it makes the rest easier.
Start with APK, since everything else assumes it. An APK is the package an Android app ships inside, and the property that matters is that anybody can take a legitimate one, change its contents, sign it again, and hand it out looking identical. That single fact explains why so much of this site is about where a file came from rather than what it does.
Patcher comes next, because it separates how Vanced worked from how ReVanced works. Vanced was distributed as a finished modified app; ReVanced ships tooling that modifies an official YouTube APK on your own device. That is why there is no ReVanced app to download.
The Four Names People Confuse
Search results mix these up constantly, and the confusion causes real problems.
- YouTube Vanced was the modified app itself. It ended in March 2022 and 17.03.38 was its final release.
- Vanced Manager was the separate installer that downloaded and updated it. It is not the app, and it stopped working when the project's servers were retired.
- MicroG is a third package, a stand-in for Google Play Services that made account sign-in possible. Without it Vanced could not log in at all.
- ReVanced is the successor project, built on patching rather than distribution, and unrelated to the original team.
Several of the most persistent "Vanced is not working" problems trace back to treating one of those four as another. The YouTube Vanced hub covers how they fit together historically.
Terms That Explain a Failure
If something is broken rather than merely unfamiliar, three entries help. MicroG covers login failures, the most common symptom on old installs and the one no local fix resolves. Split APK covers a large share of ReVanced install errors, because an app delivered in several pieces cannot be patched the way a single package can. Root vs non-root is worth reading mainly to rule it out: almost nothing described here requires root, despite how often guides elsewhere imply otherwise.
Terms That Describe a Feature
Background playback, picture-in-picture, and SponsorBlock are the capabilities people actually wanted from a modified client, and each behaves differently across apps. SponsorBlock is worth understanding before comparing anything, since it skips creator-recorded sponsor segments, which is a separate matter from blocking YouTube's own advertising. Android TV client matters if your screen is a television, where phone apps do not transfer.