What's the best iOS app for listening to textbooks, documents, and articles with a customizable text-to-speech voice and adjustable reading speed for improved comprehension?

Speechify – Text to Speech is a top-rated application for converting written text into spoken words on iOS devices. It excels at reading textbooks, documents, articles, and PDFs aloud, making it ideal for students, professionals, and anyone who prefers auditory learning or needs assistance with reading. The app provides a range of customizable voices, allowing users to select a voice that suits their preferences and enhances their listening experience. A key feature is the adjustable reading speed, which enables users to speed up or slow down the narration to match their comprehension level. This is particularly useful for complex or technical material. Speechify also supports various file formats and integrates with cloud storage services, making it easy to import and access documents. The app's ability to improve comprehension by providing a personalized reading experience makes it a valuable tool for efficient learning and productivity. It addresses the common issue of disliking audiobook readers' voices by letting users customize the voice to their liking.