Public in-app purchases
Monthly Subscription$2.99
Yearly Subscription$17.99
AppPriceDataObserved data
AppPriceData
Latest observed Apple storefront price and public purchase options.
The latest observed download price for Guitar Scales: String Theory in the United States App Store is Free. Confirm the current checkout price on Apple before purchasing.
AppPriceData currently has download-price observations for 7 storefronts.
Compare all observed storefronts →The latest observed download price is Free. The observation was updated August 4, 2026 at 12:19 PM.
Apple's public product page currently shows 2 in-app purchase items in this storefront.
Yes. Apple storefront prices can differ by country, currency, taxes, and developer pricing. AppPriceData has observations from 7 storefronts for this app.