What Is an Android Launcher?

If you've never thought about your phone's launcher before, you're not alone. Most people use the one their phone came with and never realize they have a choice.

The launcher is your home screen

On Android, the launcher is the app that runs your home screen. It's what you see when you press the Home button: the grid of app icons, the dock at the bottom, the swipe-up app drawer. All of that is the launcher.

Every Android phone ships with a default launcher made by the manufacturer. Samsung's One UI Home, Google's Pixel Launcher, Xiaomi's MIUI launcher, and so on. These are pre-installed and usually can't be uninstalled, but they can be replaced by another launcher app.

What a launcher actually does

A launcher is responsible for:

• Your home screen layout — where icons sit, what widgets you have, how pages of icons work
• The app drawer — the full list of installed apps you can open
• Search and shortcuts — how you find apps and trigger quick actions
• Gestures and navigation — what happens when you swipe, long-press, or tap empty space
• The overall look and feel of every interaction outside an individual app

A launcher does not control your lock screen, your status bar, your notifications, or anything that happens inside a specific app. Those are managed by Android itself or by the apps you use.

Why replace your launcher?

Default launchers are fine, but they're built to please everyone. That usually means they're loud (lots of icons and widgets competing for attention), shallow (a flat grid with maybe a few folders), and full of features you don't use.

Replacing your launcher is one of the most powerful customizations on Android. A different launcher can:

• Reduce visual noise — minimalist launchers strip the home screen down to only what you actually use
• Reorganize your apps — by category, by frequency, by intent, in nested folders, or in a search-first interface
• Speed up daily use — faster gestures, better one-handed reach, smarter shortcuts
• Change your relationship with your phone — some launchers are designed to make your phone genuinely less interesting to look at, helping reduce screen time

It takes about 30 seconds to switch. You can switch back just as quickly. There's no commitment, and no data is lost. Your apps and content stay exactly where they were.

How to switch your launcher

1. Install a launcher from the Google Play Store (for example, Tree Launcher)
2. Press the Home button on your device
3. When Android asks which app to use as your home screen, pick the new launcher and choose Always

If you miss the prompt, go to your device's Settings → Apps → Default Apps → Home App (the exact path varies by manufacturer) and pick the launcher you want.

To go back to your original launcher, repeat the same steps and select it instead.

Where Tree Launcher fits in

Most launchers are still grids or lists of apps, just made cleaner or more polished. Tree Launcher takes a different approach: your home screen is a tree of nested pages where apps live alongside notes, tasks, links, and images. You navigate by swiping into and out of pages, the same way your brain navigates nested categories.

If you want the philosophy behind that, see the About page. If you're ready to start using it, head to Getting Started.