KK Launcher is a popular, highly customizable launcher designed to bring the polished look and feel of modern Android (like Android Lollipop and Marshmallow) to older devices. The "Prime" version is the premium upgrade that unlocks advanced features, including:

Many modded APKs contain hidden background processes (like crypto-miners) that significantly slow down your device and kill your battery life. How to Get Premium Features Safely

If you want the best launcher experience without compromising your safety, consider these options:

If you cannot afford a premium launcher, there are incredible free options like Nova Launcher , Lawnchair , or Microsoft Launcher that offer many "Prime-like" features at no cost.