Privacy Policy
Last updated: 13/11/2025:
Welcome to Text to Speech: Voice to Text (the "App"), developed and operated by Sigma Delta Apps ("we", "our", "us"). We are committed to protecting your privacy and ensuring that your data is handled in a safe and responsible manner.
This Privacy Policy outlines the types of information we collect through the App, how we use and safeguard that information, and the choices you have regarding your data. It applies to all users of the App and reflects our commitment to transparency and compliance with major data protection laws and platform policies, including:
General Data Protection Regulation (GDPR) – for users in the European Economic Area (EEA)
California Consumer Privacy Act (CCPA) – for users in California, USA
Google Play Developer Policies – as required by Google Play for apps distributed through its platform
By downloading, installing, accessing, or using the App, you agree to the terms of this Privacy Policy and consent to the collection and use of information as described herein. If you do not agree with any part of this Privacy Policy or our practices, we kindly ask that you refrain from using the App.
We encourage you to read this Privacy Policy carefully to understand how we handle your information. If you have any questions or concerns, please feel free to contact us at sigmadelta.apps@gmail.com.
1. EU USER CONSENT POLICY & GDPR COMPLIANCE:
In compliance with the EU ePrivacy Directive and the General Data Protection Regulation (GDPR), Text to Speech: Voice to Text strictly adheres to Google’s EU User Consent Policy.
Users located in the European Economic Area (EEA) are presented with a clear consent request before any personal or non-personal data is processed for advertising or analytics purposes.
We provide users with the option to choose between:
Personalized Ads – based on user interests, device identifiers, or activity.
Non-Personalized Ads – contextual ads that do not rely on user tracking.
Consent is requested through an in-app notice or dialog when the App is first launched, and users may withdraw or update their preferences at any time through the app settings.
No advertising or analytics data is collected until the user has made a choice.
This ensures full transparency, legal compliance, and respect for user privacy rights as required under GDPR.
2. CONSENT
By using Text to Speech: Voice to Text, you provide your consent to:
The collection and use of your information as described in this Privacy Policy.
The processing of your data for the app’s core functionalities (such as converting voice into text and text into speech).
You can withdraw your consent at any time by contacting us or by changing your preferences within the App.
3. INFORMATION WE COLLECT:
Text to Speech: Voice to Text collects only the minimum data necessary to ensure proper functionality, performance, and user experience. The information we may collect includes:
a. Personal Information
We do not require users to create an account or share personally identifiable information. However, if users choose to contact us via email for support or feedback, we may collect basic contact details (such as your name and email address) solely for the purpose of responding to your inquiry.
b. Non-Personal Information
To improve app performance and stability, we may collect limited non-personal data such as:
Device type and operating system version
App version and usage statistics
Crash logs or diagnostic information
This data is used exclusively for analytics, bug fixing, and enhancing app performance.
c. Voice and Text Data
When you use the app’s speech recognition or text-to-speech features:
Voice Input: Your spoken words are converted into text using your device’s built-in speech recognition services (e.g., Google Speech API).
Text Input: Your text is processed locally to generate spoken audio output.
We do not store, transmit, or share any voice or text data with third parties. All processing occurs securely within your device environment.
4. PERMISSIONS REQUESTED:
To provide full functionality, Text to Speech: Voice to Text may request certain permissions from your device. These permissions enable key features such as speech recognition, text-to-speech conversion, personalized ads, analytics, and optional in-app purchases.
<uses-permission android:name="android.permission.INTERNET" />
This permission allows your app to access the internet. It is necessary if your app needs to fetch data from online services or make API calls (for example, interacting with a remote server).
<uses-permission android:name="android.permission.READ_CONTACTS" />
This permission allows your app to read the device's contacts. If your app needs to display the user's contact list or interact with a contact, this permission is required.
<uses-permission android:name="android.permission.WRITE_CONTACTS" />
This permission allows your app to modify contacts on the device. If your app needs to add new contacts, update existing contacts, or delete contacts, you will need this permission.
<uses-permission android:name="android.permission.POST_NOTIFICATIONS" />
This permission allows your app to send push notifications. If your app wants to send notifications to the user (such as reminders, updates, or alerts), this permission is necessary.
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
This permission allows your app to write files to the device's external storage (such as an SD card). If your app needs to save files, images, videos, or documents on the device, you will need this permission.
5. USER DATA ACCESS POLICY:
To deliver the core features of Text to Speech: Voice to Text, our app requires access to certain device data and permissions. We strictly follow Google Play Developer Policies and ensure that all data access is used only for functional purposes and never for unauthorized data collection.
📦 Data We Access
Microphone (Audio Recording):
Used solely to capture your voice input for speech-to-text conversion.
Audio data is processed in real time through your device’s built-in speech recognition services (e.g., Google Speech API) and is not stored or transmitted to our servers.
Text Input:
Text entered by users is processed locally to generate speech output through text-to-speech functionality.
No text data is collected, stored, or shared.
Device & Network State:
Used to ensure stable connectivity for ads, analytics, voice services, and in-app updates.
Notification Access:
Used (if permitted) to send important app notifications, such as updates, reminders, or information about premium features.
Advertising IDs (AdMob, Firebase):
Used for ad personalization, frequency capping, and measuring ad performance — all in accordance with Google’s EU User Consent Policy and user preferences.
App Install Referrer Data:
Used to understand how users discover the app (e.g., from Google Play ads or search).
This helps us improve app performance and user engagement.
🔐 Data Storage & Security
All accessed data (voice, text, or analytics) is processed locally on your device unless explicitly stated (e.g., crash reports via Firebase).
We do not upload, sell, or share personal, voice, or text data with any third parties outside the scope of this Privacy Policy.
Sensitive permissions (such as microphone or notifications) are used only when the app is active and not unnecessarily in the background.
🔁 How Data Is Used
To convert voice into text and text into speech.
To improve speech accuracy and overall app stability.
To display relevant, compliant ads and support app monetization.
To provide optional premium features via secure billing.
✅ Consent & Control
Users are prompted to grant permissions before any features are enabled.
You may withdraw consent at any time by disabling permissions in your device settings.
Core features (such as voice recognition and text-to-speech output) will only work if the required permissions (e.g., microphone access) are granted.
6. HOW WE USE YOUR INFORMATION:
We use the information we collect only to ensure that Text to Speech: Voice to Text functions properly, provides a smooth experience, and continues to improve over time.
⚙️ App Functionality
Use microphone input to capture and convert your voice into text.
Use text input to generate spoken output using your device’s text-to-speech engine.
Maintain app stability and responsiveness while performing voice or text operations.
📊 Improve Performance
Collect crash reports and limited usage data through Firebase to identify and fix bugs.
Analyze non-personal app usage metrics to improve speech accuracy, performance, and user experience.
📢 Ads & Monetization
Use AdMob and advertising IDs to display personalized or non-personalized ads (based on user consent).
Ad revenue supports app maintenance and keeps the app free for all users.
🔔 Notifications & Alerts
Send optional notifications such as updates, reminders, or information about premium features.
Notifications are only sent if the user grants permission.
🛒 In-App Purchases
Enable secure Google Play billing for optional purchases, such as ad removal or access to premium voice packs.
⚖️ Legal & Safety
We may share limited information only if required by law or to protect our rights, property, and the safety of users.
We do not sell, trade, or rent user information under any circumstances.
7. THIRD-PARTY ACCESS & SERVICES
To make Text to Speech: Voice to Text more efficient, reliable, and user-friendly, we rely on trusted third-party service providers who help us manage essential functions such as analytics, advertising, and app infrastructure.
📈 Analytics & Performance
Services like Google Analytics for Firebase collect anonymous and aggregated data about how you use the App.
This helps us understand user behavior, identify technical issues, and continuously improve features and performance.
📢 Advertising
We use Google AdMob to display personalized or non-personalized ads (based on your consent).
AdMob uses limited data, such as anonymous advertising IDs, to deliver relevant ads while fully respecting your privacy preferences.
⚙️ App Services & Infrastructure
Google Play Services provides essential background support for the App, including:
App updates and stability improvements
Push notifications
Installation tracking and analytics
These services ensure smooth and reliable app performance.
🔐 How Your Data is Handled
Third-party services only access anonymous or aggregated data.
They do not receive your personally identifiable information unless you have given explicit consent.
We carefully select third-party partners who comply with strict privacy, data protection, and security standards.
🤝 When Data May Be Shared
We may share information with third parties only in the following limited circumstances:
⚖️ When required by law, regulation, or valid legal process.
🛡️ To protect our rights, prevent fraud, or ensure user safety.
🤝 With trusted partners working on our behalf under confidentiality and data protection agreements.
8. DATA SECURITY:
We care about your privacy and work to keep your data safe while using Text to Speech: Voice to Text.
We do not store your personal information, voice, or text data on any server.
All voice and text processing happens locally on your device.
Any data used by third-party services (like AdMob or Firebase) is protected by Google’s secure systems.
We only use the data needed for the app to work properly and improve performance.
While no system is 100% secure, we always follow best security practices to protect your data.
9. YOUR RIGHTS (GDPR/CCPA):
Depending on where you live (for example, in Europe under GDPR or California under CCPA), you may have certain privacy rights regarding your personal data.
📂 Right to Access
You can ask what data we collect and how we use it.
✏️ Right to Correct
If any data we have is inaccurate, you can request that it be corrected.
🗑️ Right to Delete
You can ask us to delete your data, where applicable.
🚫 Right to Restrict / Opt-Out
You can opt out of personalized ads or certain types of data processing at any time.
🔄 Right to Withdraw Consent
If you previously gave consent, you can withdraw it whenever you choose.
📧 To exercise these rights, please contact us at sigmadelta.apps@gmail.com.
10. AGE POLICY:
👥 Text to Speech: Voice to Text is designed for general users aged 13 and above.
🚫 We do not knowingly collect or store any personal data from children under the age of 13.
👨👩👧 If you are under 13, please use the app only with the permission and supervision of a parent or legal guardian.
✅ This policy complies with the Children’s Online Privacy Protection Act (COPPA) and GDPR age requirements for data protection.
11. ADDITIONAL PRIVACY NOTICE FOR U.S. RESIDENTS:
Some U.S. states (such as California) provide additional privacy rights to their residents.
Text to Speech: Voice to Text already respects your privacy, and we want to be transparent about our practices:
❌ We do not sell your personal data.
❌ We do not share your data with third parties for marketing purposes.
❌ We do not use your data for targeted profiling.
Since our app does not collect sensitive personal information (such as name, email address, or physical location), most U.S. privacy laws (like CCPA) may not directly apply.
📧 If you have any questions or privacy concerns, you can always contact us at sigmadelta.apps@gmail.com
12. CHANGES TO THIS PRIVACY POLICY:
We may update or revise this Privacy Policy from time to time to reflect changes in our practices, legal requirements, or app features.
Whenever we make an update, the “Last Updated” date at the top of this page will be revised.
We encourage you to review this Privacy Policy regularly so that you remain informed about how we protect your information.
If any changes are significant, we may also notify you directly within the app or through a system notification.
13. CONTACT US:
If you have any questions, feedback, or concerns about this Privacy Policy or how your data is handled in the Text to Speech: Voice to Text app, please feel free to contact us.We will do our best to respond promptly and provide clear answers at sigmadelta.apps@gmail.com