Text2Speech Privacy Policy

This Privacy Policy governs your use of the mobile application Text2Speech (the "App" or "Service"), operated by Shengcheng Yang (referred to as "we," "us," or "our"). We prioritize your privacy above all else and are dedicated to ensuring complete transparency regarding how your text content, document data, and audio files are processed.

By using the Text2Speech App, you acknowledge and agree to the terms described in this Privacy Policy.

1. Core Privacy Commitments: Text-to-Speech Processing & No Data Retention

Text2Speech provides advanced AI-powered text-to-speech audio synthesis and reading tools, including Document Upload Reading, Document Scanning & OCR Reading, Web Page Link Reading, Direct Text Input/Paste Reading, AI Podcast Generation, Cloud Storage Integration (Google Drive, Microsoft OneDrive), Multiple High-Quality Voice Models, and Playback Speed Controls.

We adhere to strict privacy principles when processing your text and audio content:

Single-Session AI Processing: The text content you input, paste, upload, scan, or import from third-party links or cloud services is processed strictly to perform the requested text-to-speech generation. It is used only during that active processing request to generate audio.
No Cloud Storage or Data Harvesting: We do not store, archive, sell, or retain your uploaded or submitted text content on our servers. Your text content is never used for building user advertising profiles or training AI models.
Third-Party AI Model Integration (Replicate): To deliver natural, high-quality AI speech synthesis (such as realistic human voices and AI podcast generation), the App securely sends the text content to cloud-hosted AI models powered by Replicate (replicate.com). The text data is transmitted via secure encrypted channels (HTTPS/TLS) strictly for transient audio generation and is deleted immediately after the synthesized audio is returned to your device.
Local Sandbox Storage: Synthesized audio files and user reading history are saved permanently and exclusively inside the local app sandbox on your physical device, organized via lists and folders for your personal management. We have zero access to your local sandbox content.

You maintain total control and ownership of your text content and generated audio files at all times.

2. Features & Third-Party AI Processing

The following table outlines how your content is handled across our core features:

3. Cloud Storage Access & Third-Party Services

3.1. Google Drive & Microsoft OneDrive Integration

Feature Name	Processing Method	Data Retention & Privacy Guarantee
Document Upload & Reading	Text extracted locally or sent via encrypted API to Replicate AI speech models for audio conversion.	Text is processed temporarily for the active conversion request. No cloud storage of original documents.
Document Scanning & OCR	Scanned text is extracted from camera/images and sent securely to Replicate AI speech models.	Image scans and extracted text are processed only for speech synthesis and deleted immediately post-generation.
Web Page Link Reading	Main body text is fetched from the user-provided URL and converted to audio via Replicate AI models.	URL content is parsed in real-time. No web browsing history or content is logged or retained.
Direct Input / Paste Reading	Typed or pasted text is transmitted via secure API to Replicate AI models for audio synthesis.	Text content is used strictly for generating the requested speech and purged immediately afterward.
AI Podcast Generation	Source material or prompts are processed via Replicate AI models to create multi-speaker podcast audio.	Used strictly for real-time podcast synthesis. Generated audio is stored locally on your device.
Cloud Storage Content Reading (Google Drive, OneDrive)	Files selected via user authorization are retrieved and processed into audio via Replicate AI models.	App accesses files on a read-only basis for speech conversion. We do not store cloud account credentials or files.
High-Quality Voices & Speed Controls	Audio parameters (voice selection, speed multiplier) are passed alongside text to Replicate AI models.	Voice configuration parameters are used transiently during the synthesis session.

When you choose to read files stored in your cloud storage accounts (such as Google Drive or Microsoft OneDrive), Text2Speech requests temporary, explicit read permission through standard system OAuth authentication protocols.

3.2. Replicate AI Processing & Data Deletion

Because high-quality AI speech synthesis and AI podcast creation require powerful neural models, Text2Speech utilizes online AI infrastructure provided by Replicate (https://replicate.com).

4. Local Sandbox Storage & User Control

All audio generated through Text2Speech, along with reading history, lists, and user-created folder structures, is saved exclusively within the app's private local sandbox environment on your device.

5. Subscriptions and Payments

Text2Speech offers auto-renewable subscription plans for unlimited reading, high-quality premium voice access, and advanced features:

Payment Terms: Payment will be charged to your Apple ID Account at confirmation of purchase. Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscriptions by going to your App Store Account Settings after purchase.

6. Information We Collect

Outside of temporary text transmission for AI speech synthesis, we collect minimal operational and support information necessary to deliver and maintain our services.

6.1. User-Provided Information

6.2. Automatically Collected Technical Data

We automatically collect non-personally identifiable technical information to monitor app stability and performance:

7. Disclosure and Sharing of Information

Data Category	Examples of Data Collected	Purpose
Device Information	Device model, iOS version, system language, time zone, app version.	To ensure text-to-speech compatibility and performance optimization on your device.
App Analytics	Feature usage frequency (e.g., number of times OCR or link reading is initiated).	To identify popular app capabilities and optimize user interface design.
Crash Reports	Error stack traces and system performance logs at the time of a crash (contains zero user text).	To diagnose software bugs and maintain application stability.
In-App Purchase Records	Subscription status, purchase timestamps, transaction IDs (managed via Apple App Store).	To grant premium voice access and manage active subscriptions. We never see financial details or credit cards.

We do not sell, rent, or commercialize your personal content or technical information. Information is disclosed only under the following limited circumstances:

8. Data Security and Retention

9. Children's Privacy

Text2Speech is not directed to children under the age of 13. We do not knowingly collect personal information from children under 13. If you become aware that a child has provided us with personal information without parental consent, please contact us immediately, and we will take appropriate steps to delete such information.

10. Your Privacy Rights

Depending on your location (such as the EU under GDPR or California under CCPA/CPRA), you have rights regarding your personal information, including requesting access, correction, or deletion of support correspondence. Because we do not store your text content or profile data on cloud servers, these rights apply primarily to support interactions.

11. Changes to This Privacy Policy

We may update this Privacy Policy from time to time to reflect changes in our app features or regulatory requirements. We will notify you of any material changes by posting the new policy on this page with an updated "Effective Date." You are advised to review this policy periodically.