product variants2 blogger native android app1 clean code1 clothing1 color option1 combinations of options1 custom options1 custom variation1 dependent options1 ecommerce1 ecommerce app template1 fashion store app1 fast checkout1 linked options1 openstock1 product discounts1 push notifications1 related options1 shoes variation1 shopping app1 size color option1 size option1 t-shirt1 tshirt related options1