When comparing Z Launcher Beta vs CM Launcher, 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 CM Launcher is ranked 36th. 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 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.
Pro Personalization
CM Launcher contains a variety of wallpapers,
themes and icons to make your Android reflect you.
Pro Simple interface
CM Launcher includes only the basics in order to make it as lightweight as possible. It has no effect or resource intensive advanced functionality. The interface is clean and intuitive if somewhat basic.
Pro Little resource usage
CM Launcher is very lightweight both in terms of size (3.6 - 8.6 MB depending on the device) and resource usage. It even pauses the launcher itself when it's not used to conserve resources.
Cons
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.
Con Misleadingly drains battery life
Cheetah Mobile products, despite being advertised as saving battery life, actually drain battery life.
