When should a pet supplies store in the GCC build an app?

After the store has a repeat customer base and before its advertising costs make the second sale as expensive as the first. That window is narrower than it sounds and most stores notice it from the wrong side.

The timing, and the cost of getting it wrong either way

Built too early it is a cost with nothing to do. Built too late, the customers who would have installed it have already been re-bought several times through paid channels, and that money is gone.

An app earns its place through repeat purchases and notifications, so the question is really about how often somebody buys. For a pet supplies store in the GCC, the answer turns on one thing in particular: Pet food is the most reliably repeated purchase in retail: the bag runs out on a known schedule.

What is different about the GCC

The GCC is not one market. Payment habits, delivery norms and language expectations differ enough that a single approach underperforms in at least one country.

Payment preference varies by country more than most planning assumes.

What is different about a pet supplies store

Built too early it is a cost with nothing to do — an app with no customers to bring back is a bookmark nobody made.

Where a mobile app comes into it

This is the clearest case for an app of any category. TicApp built barcode reordering into Pets Lounge for exactly this.