What package does this bug report belong to?

in_app_purchase

What target platforms are you seeing this bug on?

iOS

Have you already upgraded your packages?

Yes

Dependency versions

in_app_purchase: 3.2.0
in_app_purchase_android: 0.3.6+12
in_app_purchase_platform_interface: 1.4.0
in_app_purchase_storekit: 0.3.20

Steps to reproduce

1. Pre-requisites: have your products defined in App Store Connect or a local StoreKit config with your products
2. Enable StoreKit 2
3. Query your products details

Expected results

@LouiseHsu Based on comment #116383 (comment) (and because we have an issue with StoreKit 1 where failed transactions can never be completed when testing as per #98484), we wanted to try StoreKit 2.

We expected the formatted localized string of a product price to be displayable as this to the user, like it was with StoreKit 1.
If the defined price is 24.99 in US Dollar, ProductDetails.price should contains "$24.99" for US locale.

Actual results

We currently have 6 prices defined in App Store Connect and only 2 are displayed as expected with StoreKit 2:

✅ 0.99 -> "$0.99"
❌ 2.99 -> "$2.9899999999999998"
❌ 3.99 -> "$3.9899999999999998"
✅ 8.99 ->"$8.99"
❌ 17.99 -> "$17.990000000000002"
❌ 24.99 -> "$24.990000000000002"

This is the value returned by ProductDetails.price.
The value from (productDetails as AppStoreProduct2Details).sk2Product.displayPrice seems correct.

We found a similar issue discussed in RevenueCat: RevenueCat/purchases-ios#2207

Code sample

InAppPurchaseStoreKitPlatform.registerPlatform();
final iapStoreKitPlatform = InAppPurchasePlatform.instance as InAppPurchaseStoreKitPlatform;
iapStoreKitPlatform.enableStoreKit2();

final storeResponse = await InAppPurchase.instance.queryProductDetails({'your_product_id'});

Screenshots or Videos

Logs

No response

Flutter Doctor output

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[✓] Flutter (Channel stable, 3.24.4, on macOS 14.6.1 23G93 darwin-arm64, locale fr-FR)
[✓] Android toolchain - develop for Android devices (Android SDK version 34.0.0)
[✓] Xcode - develop for iOS and macOS (Xcode 16.1)
[✓] Chrome - develop for the web
[✓] Android Studio (version 2024.1)
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