Sandbook: Natural Voice Reader

Developer: SmashMelon LLC

Category: Productivity

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2.3K installs

46 ratings

223 monthly active users

Revenue not available

Install Trends

Weekly +50

Steady

Monthly +200

Steady

Sandbook: Natural Voice Reader Summary

Sandbook: Natural Voice Reader is a mobile iOS app in Productivity by SmashMelon LLC. Released in May 2025 (1 year ago). It has 46 ratings with a 4.64★ (excellent) average. Based on AppGoblin estimates, it reaches roughly 223 monthly active users . Store metadata: updated Dec 27, 2025.

Recent activity: 1.00 new ratings this week View trends →

Store info: Last updated on App Store on Dec 27, 2025 .

SDKs, Trackers & Permissions

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App Details

Store ID: 6745732885

First Released: 2025-05-18

Store Last Updated: 2025-12-27

In-App Purchases: No

Ads: No

Website: sandbook.app

App Store

Crawl Status: Success

AppGoblin First Crawled: 2025-05-18

AppGoblin Last Crawled: 2026-05-14

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The download and scan process is automated but can require manual troubleshooting. Feel free to reach out if your request does not complete in 24hrs or if you have any questions.

4.64★

Ratings: 46

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Screenshots

App Description

Sandbook is a realistic on-device text-to-speech (TTS) model that converts your input text into emotionally natural speech. You can use it to read ePub books, PDF, or TXT files. You can also use it to generate short speech samples and export them for further use.

Import EPUBs, PDFs, or TXT files and listen with your choice of dozens of natural-sounding voices, including British and American accents in both male and female options. Type or paste any text directly, read webpages aloud, and download audio files for on-the-go listening.

No cloud processing, unlimited usage, user-friendly interface, and complete privacy protection - everything happens right on your device.

■ FAQ

1. Why doesn't it support background/screen-off reading?
Because it runs a large model on your device, Apple forbids apps that use high GPU/VRAM from running in the background.

2. Is it normal for my phone to heat up or sometimes even crash during use?
Heating up is normal because the app is utilizing your device's GPU. If it crashes, this indicates that your device has low memory (3GB or less), which may happen on iPhone SE or older models.

3. What languages does Sandbook support?
Sandbook currently supports English (US/UK) voices with both male and female options, delivering exceptionally natural pronunciation and intonation.

4. About privacy
All your data stays on your phone and never leaves your device.

■ Support
https://sandbook.app
support@sandbook.app