What causes IAP prices not localized showing USD everywhere?

You render a hardcoded price string in your UI instead of the localized price the store returns, so players in every country see USD with the wrong currency and formatting.

How do I catch this when it only happens for some players?

Capture it automatically from the player's device with the full stack trace, the device and OS, the build, and a breadcrumb trail of what they did. That turns a vague complaint into a specific, reproducible issue you can fix without owning the hardware it happens on.

How to Fix IAP Prices Not Localized and Showing USD Everywhere

Quick answer: Display the localized price string and currency from the product details the store returns, never a price you hardcoded in the client.

A player in Japan sees '$4.99' instead of '¥600' because your shop draws a hardcoded label. The store already returns a localized, correctly formatted price. Using it fixes the localization.

How to fix it

1. Use the store's localized price

Render product.localizedPrice / price_amount_micros with price_currency_code from the product details response, not a string you wrote.

2. Never hardcode amounts

Remove any hardcoded '$4.99' labels; the store sets regional prices and tiers, and only it knows the player's currency and formatting conventions.

3. Format with the store's currency

When you must compute a display (for example a bundle total), format using the currency code the store provided so symbols and decimal rules are correct.

Catching the ones you can't reproduce

The hardest version of this to fix is the one you can't reproduce — it only happens on a player's hardware, OS, driver, or save state, under conditions that simply aren't present on your machine. A report that says “it crashed” or “it froze” gives you nothing to act on, so the bug survives release after release while quietly costing you players.

Automatic error capture closes that gap. Each failure arrives with its full stack trace, the device and OS, the build number, and a breadcrumb trail of what the player did right before it broke, so even a failure you have never seen becomes a specific, reproducible issue. Fold identical failures into one signature ranked by how many players each hits, and your worklist sorts itself worst-first instead of arriving as a stream of vague complaints.

This is where a tool like Bugnet earns its place. Its SDK captures every mobile error automatically with the full stack trace plus device, OS, memory, build, and game-state context, folds duplicates into one grouped issue with an occurrence count, and ties each to the build it first appeared on — so you fix the problem that hurts the most players first and confirm it is gone when its signature disappears from the next release.

Reproduce it once with full context and the fix writes itself. The hunt is the expensive part.