Arabic Shopify Store with WhatsApp Checkout

I need a clean, fully Arabic-language Shopify storefront focused on women’s clothing. Shoppers should be able to browse, pick their size, add items to a cart, and then complete the order by sending a pre-filled WhatsApp message to my shop number—no online payment gateway is required.

Core flows
• Home, collection, and product pages laid out in Arabic (including RTL formatting).
• Size guide popup on every product so customers can choose the correct fit before adding to cart.
• “Pick Size” selector that ties directly into inventory variants.
• “Add to Cart” button that builds an order summary; when the customer clicks “Checkout” the cart details should open WhatsApp with the order pre-written (using the WhatsApp API link).

Because WhatsApp is my only checkout channel, the hand-off must be seamless on both mobile and desktop. I’ll provide copy in Arabic and product photos; you handle theme selection/customization, app integrations, and testing.

Acceptance criteria
1. Site loads in Arabic by default and all UI strings are translated.
2. Cart-to-WhatsApp flow works on major browsers and iOS/Android devices.
3. Size guide and size picker display correctly on every product.
4. Store is handed over via Shopify staff account with instructions on adding new products.

If you have built something similar or already know the best Shopify apps for WhatsApp checkout, that’s a big plus.