For 24 hours you can get the full version of Nextlauncher 3D for free via Appoftheday:

Download the lite version of Next Launcher from:
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Go to the Launcher’s preferences and scroll down to: "About the Full version”

Click on “activate” and enter “nextlauncher3d” as the account name. (Enter it without the quotes)
Enter “appoftheday” as the promo code.
Congratulations, you have unlocked the full version for free.