Voice Pack: US English is an iPhone app developed by Voice Dream LLC. It is a full version program that falls under the Education & Reference category. This app is specifically designed for schools that use Apple's Volume Purchase Program (VPP) and provides two of the best US English voices, Sharon and James, at a 25% discount.

The primary purpose of this app is to address the limitation of In-App Purchases for VPP customers. After downloading the app, users are prompted to download the Sharon and James voices. Once the download is complete, users need to restart Voice Dream Reader and Writer to access these voices. It is important to ensure that both Reader and Writer have been updated to the latest release.

In addition to adding voices, Voice Pack: US English also offers a useful feature. It includes a text box where users can paste any text and tap on any word to hear it spoken. This feature is particularly beneficial for beginning readers looking to improve their phonetic skills.