The Beauty Salon is developed by Themeforest. You can download the version 3.1 for $5 or have it for free if you subscribe to a monthly plan.
The Beauty Salon is the SAME file as the original one (nulled version) developed by Themeforest. The last update of October 9, 2018 comes with new features and known bugs have been fixed.
For more information, click here to visit the developer page of this The Beauty Salon.