Another option for locating historical builds of the free base app. Installation Note

Even on older hardware, Nova Launcher Prime provides significant enhancements: Nova Launcher Lifetime Prime - Apps on Google Play

To keep your Android 4.4.2 device running at peak performance with Nova Launcher:

A: On 4.4.2, Google Play licensing sometimes fails. Workaround: Install Lucky Patcher (root) with “License verification emulation” – but that’s unethical. Better: Purchase Prime once and extract the APK from a newer device.