When comparing Buzz Launcher vs Z Launcher Beta, the Slant community recommends Z Launcher Beta for most people. In the question“What are the best launchers for Android?” Z Launcher Beta is ranked 7th while Buzz Launcher is ranked 9th. The most important reason people chose Z Launcher Beta is:
Users use their finger or a stylus to write the first letter of an app they are looking for in order to find it and launch it. It allows for a fast way to find and launch apps.
Specs
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Pros
Pro Extremely customizable
Buzz Launcher allows for amazing customization, the reason why there is so many different and unique homepacks available. Buzz Launcher has gesture support, custom grid sizes (up to a maximum of 12 rows and columns) with adjustable size of margins, and even allows different wallpapers on each home screen. The Buzz Custom Widget App also allows you to create your own widget.
Pro Has over 500,000 user created themes
Unlike other launchers that force you to waste time customizing your launcher, Homepack Buzz allows you to simply download other's amazing creations. The Homepacks are also so different that you'll never get bored. Over 500,000 Homepacks to choose from.
Pro Create your own unique widgets using the Buzz Custom Widget app
Buzz Launcher takes the concept of widgets a step further, allowing you to create your own unique widgets using the Buzz Custom Widget app. The app lets you adjust the size of the widget, as well as its color, borders, fill and shadow. Moreover, you can insert and edit text and images, assign the order of object layers, and rotate objects 360 degrees.
Pro Free
Buzz Launcher is completely free to use with zero in app purchases.
Pro App drawer customization
You can sort your apps according to title, date of installation or frequency of use. Buzz Launcher also lets you hide unwanted apps -- a feature most other launchers only provide in their paid versions.
Pro Fast
Buzz Launcher performs slightly faster than stock Jelly Bean.
Pro There are so many different styles that collecting and organising your favorite ones becomes more of a hobby and a lot of fun.
Pro Buzz Launcher has a strong community of artists, developers and those who appreciate the work put into each pack.

Pro Apps can be searched for by scribbling letters
Users use their finger or a stylus to write the first letter of an app they are looking for in order to find it and launch it. It allows for a fast way to find and launch apps.
Pro Allows searching contacts and websites directly from the launcher
By gesture writing the name of a contact or website on the home screen the launcher will show results for the user to click on to go to the corresponding contact or webpage.

Pro Keeps your most used apps at the forefront
The launcher learns what the users most used apps are and adapts what it shows on the home-screen to that usage.

Pro Simplifies your homescreen
Z Launcher is a very minimal launcher where the home screen is 4 shortcuts at the bottom, 6 of the most used apps and phone numbers on the home screen and a clock at top.

Pro Nicely designed context-aware multi-app widget on homescreen
A clean and minimal designed widget that contains info from multiple apps, letting the user scroll between them intuitively.

Pro Unread Counters for docked Apps
Having apps like Hangouts or the Phone Dialer in the docked apps will allow for unread counts on the icons.
Cons
Con Buzz widget are not included
Needs to be downloaded from the Playstore.
Con Icon packs at the Play Store are usually not compatible with Buzz Launcher.
Con No landscape mode
Con Not tablet optimized
The only tablet Buzz Launcher is compatible with is the Nexus 7.
Con A severe lack of customization options
Being that this is meant as a minimal style launcher, there is not many customization options. It is of course still in beta, so more options may wind up in the app over time.
Con Scribble feature is inconsistent
Just as with writing recognition for keyboards it is not always exact, especially depending on the users own handwriting.
