Privacy Policy for Daily Sudoku

Effective Date: 2026-05-28

App Name: Daily Sudoku and Solver

Developer: MSSTUDIO

Contact: hugemstone@gmail.com

This Privacy Policy explains how Daily Sudoku (“we,” “our,” or “the App”) handles information when you use the Daily Sudoku mobile application.

Daily Sudoku is a Sudoku game and Sudoku solver app. The App is designed to work without user accounts, login, or a backend server. Most app data is stored locally on your device.

By using the App, you agree to the practices described in this Privacy Policy.

1. Information We Collect

Daily Sudoku does not require you to create an account and does not ask for your name, email address, phone number, address, or other directly identifying personal information.

However, the App may process or store the following types of information depending on the features you use.

1.1 Local Gameplay and App Data

The App may store the following information locally on your device:

  • Current Sudoku game progress

  • Puzzle state

  • Timer information

  • Mistake count

  • Hint usage

  • Best times

  • Statistics such as games started, completed, failed, or solved

  • Solver usage count

  • App settings such as vibration, sound, timer, mistake limit, and theme preference

  • Daily free hint state

This information is stored locally on your device using local storage such as Android DataStore. We do not upload this gameplay or settings data to our own server.

1.2 Camera and Photo Data for OCR Feature

If you use the Sudoku scanning feature, the App may allow you to:

  • Take a photo of a Sudoku puzzle

  • Select an image from your device gallery

  • Scan the Sudoku board using on-device text recognition

The selected or captured image is used only to detect Sudoku digits and automatically fill the Solver board.

The App does not upload your Sudoku images to our own server. OCR processing is intended to happen on your device. After processing, the recognized digits may be inserted into the Solver board so that you can review and edit them before solving.

You are responsible for ensuring that the image you select or capture does not contain sensitive personal information.

1.3 Advertising Data

Daily Sudoku uses Google AdMob to display advertisements, including banner ads, interstitial ads, and rewarded ads.

Google AdMob and related Google services may collect or process certain information for advertising, analytics, fraud prevention, frequency capping, ad personalization, and ad measurement. This may include, depending on your device settings, region, consent choices, and Google’s policies:

  • Device information

  • Advertising ID

  • App interaction information

  • Approximate location inferred from IP address

  • Ad performance information

  • Diagnostic information

We do not control all data collected by Google AdMob. Please refer to Google’s privacy practices for more details.

Google Privacy Policy:
https://policies.google.com/privacy

Google AdMob:
https://admob.google.com/

2. How We Use Information

Daily Sudoku uses information for the following purposes:

2.1 To Provide App Features

We use locally stored data to:

  • Save and continue Sudoku games

  • Track best times and basic statistics

  • Manage daily free hints

  • Apply user settings

  • Maintain theme preferences

  • Allow users to solve Sudoku puzzles

2.2 To Provide OCR-based Sudoku Input

When you use the OCR scanning feature, the App processes the selected or captured image to:

  • Detect the Sudoku board

  • Recognize visible digits

  • Fill recognized digits into the Solver board

  • Let you review and correct the board before solving

The OCR feature is provided as a convenience feature. Recognition may not always be accurate, so users should review the board before solving.

2.3 To Show Advertisements

We use Google AdMob to display ads in the App. Ads help support the free availability of the App.

Advertising may be used for:

  • Showing banner ads

  • Showing interstitial ads

  • Showing rewarded ads for extra hints

  • Measuring ad performance

  • Preventing fraud and abuse

  • Applying ad frequency settings

Depending on your region and consent choices, ads may be personalized or non-personalized.

3. Data Sharing

We do not sell your personal information.

We do not operate our own backend server for Daily Sudoku, and we do not upload your gameplay data, saved puzzle data, statistics, settings, or OCR images to our own server.

However, third-party services used in the App may process data as described below.

3.1 Google AdMob

Daily Sudoku uses Google AdMob for advertising. Google may collect and process data as described in Google’s Privacy Policy and advertising policies.

Google Privacy Policy:
https://policies.google.com/privacy

3.2 ML Kit

Daily Sudoku may use Google ML Kit for on-device text recognition. The OCR feature is intended to process images on the device for the purpose of recognizing Sudoku digits.

3.3 Legal Requirements

We may disclose information if required to do so by law, regulation, legal process, or enforceable governmental request.

4. Local Data Storage

Daily Sudoku stores app-related data locally on your device.

This may include:

  • Saved game state

  • Statistics

  • Best times

  • Hint state

  • User settings

  • Theme preference

  • Solver board state, if applicable

You can delete local app data by using the reset options inside the App if available, or by uninstalling the App, or by clearing the App’s storage through your device settings.

Because this data is stored locally, deleting the App may permanently delete your saved progress and settings.

5. Camera and Gallery Permissions

Daily Sudoku may request access to the camera or image picker only when you choose to use the OCR scanning feature.

The App uses these permissions to:

  • Capture a Sudoku puzzle photo

  • Select a Sudoku puzzle image from your gallery

  • Process the image to recognize digits

The App does not use camera or gallery access for unrelated purposes.

If you do not use the OCR feature, you can continue using the game and manual solver features without granting camera or gallery access.

6. Advertising and Consent

Daily Sudoku displays ads through Google AdMob.

In certain regions, such as the European Economic Area, the United Kingdom, or other jurisdictions with privacy or consent requirements, you may be asked to provide consent for personalized ads or related data processing.

You may also be able to limit ad tracking or reset your advertising ID through your device settings.

The availability and behavior of personalized or non-personalized ads may depend on:

  • Your device settings

  • Your region

  • Your consent choices

  • Google AdMob policies

  • Applicable law

7. Children’s Privacy

Daily Sudoku is not specifically directed to children under the age of 13 or the minimum age required by applicable law in your jurisdiction.

We do not knowingly collect personal information directly from children.

If you believe that a child has provided personal information through the App, please contact us at [Contact Email], and we will take appropriate steps as required by applicable law.

8. Data Security

We take reasonable measures to protect information handled by the App.

Because most app data is stored locally on your device, your device’s own security settings are important for protecting your local data.

However, no method of electronic storage or transmission is completely secure. We cannot guarantee absolute security.

9. Data Retention

Daily Sudoku stores local app data for as long as the App remains installed on your device or until you delete the data.

You may delete local data by:

  • Using reset features inside the App, if available

  • Clearing app storage in your device settings

  • Uninstalling the App

Data processed by third-party services such as Google AdMob may be retained according to their own policies.

10. Your Choices

You may control certain data and privacy-related choices through:

  • App settings

  • Device permission settings

  • Android app storage settings

  • Advertising ID settings

  • Google privacy and ad settings

  • Consent dialogs, where applicable

You may choose not to grant camera or gallery access. If you do not grant these permissions, the OCR scanning feature may not work, but the manual Sudoku game and Solver features can still be used.

11. Third-Party Links and Services

The App may contain links to third-party websites or services, such as:

  • Privacy Policy page

  • Open source license pages

  • Google services

  • Advertising-related services

We are not responsible for the privacy practices of third-party websites or services. We encourage you to review their privacy policies.

12. International Users

Daily Sudoku may be available in multiple countries. If you use the App outside the country where the developer is located, your information may be processed according to applicable local laws and the policies of third-party services such as Google AdMob.

13. Changes to This Privacy Policy

We may update this Privacy Policy from time to time.

When we update the Privacy Policy, we will revise the “Effective Date” at the top of this document. Continued use of the App after changes are posted means you accept the updated Privacy Policy.

We encourage you to review this Privacy Policy periodically.

14. Contact Us

If you have any questions, concerns, or requests regarding this Privacy Policy or the App’s privacy practices, please contact us at:

Developer: MSSTUDIO
Email: hugemstone@gmail.com

15. Summary

Daily Sudoku is designed as a simple, serverless Sudoku app.

In summary:

  • The App does not require login.

  • The App does not operate its own backend server.

  • Gameplay data and settings are stored locally on your device.

  • OCR images are intended to be processed on-device to recognize Sudoku digits.

  • The App uses Google AdMob to display advertisements.

  • Camera or gallery access is used only when you choose to use the OCR scanning feature.

  • You can delete local app data by clearing app storage or uninstalling the App.

댓글

댓글 쓰기

이 블로그의 인기 게시물

67 Brick Out Privacy

  Privacy Policy Last updated: December 04, 2025 MSSTUDIO  (hereinafter referred to as "we", "us", or "our") built the  67 Brick Out  app as an Ad Supported app. This SERVICE is provided by  MSSTUDIO  at no cost and is intended for use as is. This page is used to inform visitors regarding our policies with the collection, use, and disclosure of Personal Information if anyone decided to use our Service. If you choose to use our Service, then you agree to the collection and use of information in relation to this policy. The Personal Information that we collect is used for providing and improving the Service. We will not use or share your information with anyone except as described in this Privacy Policy. 1. Information Collection and Use For a better experience, while using our Service, we may require you to provide us with certain personally identifiable information. The information that we request will be retained on your device and is not collected by us ...
자세한 내용 보기

K-pop AI Privacy Policy

 Privacy Policy MSSTUDIO ("the Company") values your personal information and complies with relevant laws such as the 'Personal Information Protection Act'. This Privacy Policy informs you how your personal information is collected and used when you use the 'K-pop AI' application ("the Service"). 1. Items and Methods of Personal Information Collection The Company provides the Service without a separate membership registration process. The following information may be collected during the use of the Service: - Voice Data: When you use the voice conversation feature, voice data is temporarily collected for Speech-to-Text (STT) conversion. Collected voice data is immediately destroyed after conversion to text and is not stored on our servers. - Device Information: For service optimization, error checking, and prevention of unauthorized use, device model name, OS version, advertising identifiers (ADID/IDFA), etc., may be automatically collected. - Paymen...
자세한 내용 보기

67 privacy policy

  Privacy Policy Effective Date: [2025-11-17]  MSSTUDIO  built the Six Seven app as an Ad Supported app. This SERVICE is provided by  MSSTUDIO  at no cost and is intended for use as is. This page is used to inform visitors regarding my policies with the collection, use, and disclosure of Personal Information if anyone decided to use my Service. If you choose to use my Service, then you agree to the collection and use of information in relation to this policy. The Personal Information that I collect is used for providing and improving the Service. I will not use or share your information with anyone except as described in this Privacy Policy. Information Collection and Use For a better experience, while using our Service, I may require you to provide us with certain personally identifiable information. The information that I request will be retained on your device and is not collected by me in any way. The app does use third-party services that may collect info...
자세한 내용 보기