Sandbook: Natural Voice Reader 1.0.1

Sandbook is a realistic on-device text-to-speech (TTS) application designed to convert input text into emotionally expressive, natural-sounding speech. It is suitable for reading ePub books, PDFs, and TXT files, providing an accessible means to listen to written content. Additionally, it allows users to generate short speech samples which can be exported for various purposes.

Users can import EPUB, PDF, or TXT files and choose from a selection of dozens of high-quality voices, including British and American accents in both male and female options. The platform supports reading web pages aloud, converting arbitrary text to speech, and downloading audio files for offline listening.

Operation occurs locally on the device without reliance on cloud processing, ensuring unlimited usage, an intuitive interface, and robust privacy protections—all within the confines of the user’s hardware.

FAQ

1. Why doesn't it support background/screen-off reading?
Because the application runs a large speech synthesis model locally on your device, Apple restricts such apps from functioning in the background due to GPU/VRAM constraints.
2. Is it normal for my phone to heat up or occasionally crash during use?
Device heating is expected due to GPU utilization during operation. Crashes may indicate limited device memory (3GB or less), which is common in older models such as the iPhone SE.
3. What languages does Sandbook support?
Currently, Sandbook supports English (US and UK dialects) with both male and female voices, offering highly natural pronunciation and intonation.
4. How is privacy handled?
All user data remains on your device; nothing is transmitted or stored externally.

Support

• https://sandbook.app
• [email protected]