Why it worked
The post leverages a compelling "Buy 1 Get 2 Free" offer on popular iPhone models, presented with clear pricing and visuals, which is highly attractive to consumers looking for deals on electronics.
Summary
This is a promotional slideshow for App Store Egypt, advertising a "Buy 1 Get 2 Free" deal on iPhones. The slides showcase different iPhone models with their prices, highlighting the offer to purchase three devices for the price of one.