PRIVACY POLICY FOR TOOL YAAR : SMART UTILITIES

Last Updated: July 25, 2026


Welcome to Tool Yaar : Smart Utilities ("Tool Yaar", "App", "we", "our", or "us"), developed and operated by Dipanshu Kumar (Official Website: https://toolyaar.in).

Your privacy and data security are our highest priorities. This Privacy Policy explains how information is collected, used, encrypted, and protected when you use our application.


Tool Yaar provides optional User Authentication and secure cloud data saving backed by Firebase Database. All user data saved in the database is protected using industry-standard AES-256 Encryption—making unauthorized access or data cracking virtually impossible. Raw files processed in tools (like PDF operations, image compression, and OCR scanning) execute safely on-device.


1. INFORMATION WE COLLECT & USER ACCOUNTS

1.1 User Authentication

Tool Yaar offers optional user account creation and sign-in features powered by Firebase Authentication. Creating an account enables you to securely save, sync, and access your personal app data across your devices. You may also use the app as a guest without signing in.


1.2 Encrypted Cloud Data Saving (AES-256)

When you are signed in, your user profile and saved content are backed up in Firebase Firestore Database using AES-256 Encryption. This military-grade encryption standard ensures that your stored data is completely encrypted and practically impossible to crack or breach.


1.3 User Generated Content & Saved Data

Depending on the features you use, the App allows you to save and synchronize information including:

- Notes & To-Do Lists

- Expense Records & Budgets

- Water Reminder Schedules

- Event Countdown Data

- Calculator & Utility History

- User Settings & Preferences

- Encrypted Account Profile Information


2. FIREBASE CLOUD DATABASE & AES-256 SECURITY

Your user data saved in the cloud is stored inside Firebase Firestore Database protected by end-to-end AES-256 Encryption.

AES-256 (Advanced Encryption Standard with a 256-bit key) is recognized globally as one of the most secure encryption algorithms available. With 2^256 possible key combinations, cracking or brute-forcing this encryption is mathematically and practically impossible with current computing technology.

Guarantee: Your data is encrypted before or upon database storage, guaranteeing that no unauthorized third parties or malicious actors can intercept or crack your private information.


3. SECURE SPACE

Tool Yaar includes a feature called Secure Space, which allows users to securely protect selected files on their device.

Secure Space uses modern cryptographic standards including:

- AES-256-GCM encryption

- PBKDF2 with HMAC-SHA256

- 65,536 key derivation iterations

Encryption keys are generated locally on the user's device. Encrypted files remain stored exclusively on the device and are never uploaded to our servers.

Secure Space is protected using a password chosen by the user. Because the password is known only to the user, we cannot recover forgotten passwords or decrypt protected files.


4. ON-DEVICE PROCESSING

One of Tool Yaar's core privacy principles is that as much processing as possible happens locally. Many utilities perform their work directly on your device without uploading your files or personal content.

Examples of on-device utilities include:

- Image Compression

- Passport Photo Resizer

- Image to PDF / Merge

- PDF Compression

- OCR Document Scanner

- Background Removal

- QR Scanner / Generator

- Voice Recorder

- Speech & Text Tools

- All Calculators (EMI/GST/BMI)

- Text Encryption

- Hardware Sensors (Compass, Sound Meter)

- Stopwatch & Countdowns

- Water Reminder

- Breathing Exercise

These features process your files and data directly on your device whenever possible.


5. AI & MACHINE LEARNING FEATURES

Some features use Google ML Kit to provide intelligent on-device functionality. These include:

- Background Remover

- OCR Text Recognition

- Document Scanner

- On-device Translator

Google ML Kit performs processing locally on supported devices after the required language or AI models are installed. Your images and scanned documents are not uploaded to our servers for these features.


6. CURRENCY CONVERSION

The Currency Converter retrieves the latest exchange rates from a trusted third-party currency exchange service. Only publicly available currency exchange rates are requested.

The App does not send your personal information, conversion history, identity, or financial data to the exchange rate service. All currency conversion calculations are performed locally on your device after the latest rates are downloaded.


7. DEVICE PERMISSIONS

Tool Yaar requests only the permissions necessary for the features you choose to use:

- Camera: Used for Document Scanner, OCR Scanner, QR Scanner, Mirror, and optional Profile Photo. Accessed only when using these tools.

- Microphone: Used for Voice Recorder and Speech to Text. Audio is recorded only when initiated by you.

- Storage: Used to read images selected by you, save generated PDFs, save compressed images, store exported files, and manage Secure Space files.

- Notifications: Used to provide Water Reminder alerts, Focus Timer notifications, App tips, Feature highlights, Important updates, and Utility reminders. Disabling is possible in Android system settings.

- Exact Alarm: Used to schedule accurate reminder notifications for features such as Water Reminder, Focus Timer, and Event Countdown.

- Boot Completed: Used to restore reminder schedules automatically after the device restarts.

- Full Screen Intent: Used exclusively for the Prank Call entertainment feature to show a simulated incoming call screen over the lock screen. No real call is placed or connected.

- Vibration: Used to provide haptic feedback in supported utilities such as counters, timers, and interaction-based tools.

- Internet: Required for Advertisements, Firebase services, Currency exchange rates, Downloading Google ML Kit language models, and Feature updates.

The App does not request Location, Contacts, SMS, or Phone Call permissions.


8. ENTERTAINMENT & EMERGENCY FEATURES

- Prank Call: The Prank Call feature is intended solely for entertainment purposes. It displays a simulated incoming call interface based on the time selected by the user. It does not place, receive, or connect actual telephone calls.

- Emergency SOS: The Emergency SOS feature activates a loud emergency siren and Morse code flashlight blinking. This feature is designed to help attract nearby attention during emergency situations. It does not automatically contact emergency services, send SMS messages, or place phone calls.


9. THIRD-PARTY SERVICES & FIREBASE CLOUD ENGINE

To support account management, cloud synchronization, app reliability, and our free utility access model, Tool Yaar integrates trusted infrastructure services:

- Firebase Authentication & Firestore Database: Provides secure user sign-in and encrypted cloud storage. Your saved notes, expenses, tasks, and settings are synchronized across devices inside Firebase Firestore protected with AES-256 Encryption.

- Google AdMob: Displays Banner Ads and Native Ads using Google AdMob. AdMob may automatically collect certain non-personal technical information, including Advertising ID, Device information, App performance data, and Approximate diagnostics required for ad delivery.

- Firebase Analytics: Collects device model, Android version, app version, session duration, and feature performance metrics without exposing your personal content.

- Firebase Crashlytics & Performance: Monitors app crashes, stack traces, and network responsiveness to maintain high stability.

- Firebase Cloud Messaging (FCM): Delivers notification reminders, tips, highlights, and app updates.


10. EXTERNAL LINKS

The App may contain links to our Privacy Policy, Official Website, or Contact information. These links open in your device's default web browser. Once you leave the App, your interaction with external websites is governed by their own privacy policies.


11. DATA SECURITY & AES-256 ENCRYPTION

We implement bank-grade and military-grade security standards to protect user data. Security protocols include:

- AES-256 Encryption: Database records and saved user data in Firebase are encrypted using AES-256 bits, making brute-force cracking virtually impossible.

- Secure Space AES-256-GCM: On-device files are protected with PBKDF2 HMAC-SHA256 key derivation over 65,536 iterations.

- Firebase Authentication & TLS/SSL: All communication between the app and Firebase database is transmitted over encrypted HTTPS/TLS channels.


12. DATA RETENTION

Your encrypted saved data (Notes, To-Dos, Expenses, Preferences) is retained in your Firebase user account until you modify or delete it, or delete your user account. Locally cached data on your device remains until cleared via app settings or uninstalled.


13. ACCOUNT & DATA DELETION

You have total control over your information. You can delete your saved entries directly within the app or request full account and data deletion from your profile screen or by contacting us at support.dipanshuhub@gmail.com. Upon request, all your encrypted database records will be permanently removed from Firebase.


14. CHILDREN'S PRIVACY

Tool Yaar is intended for a general audience aged 13 years and above. We do not knowingly collect personal information from children under the age of 13. If you believe that a child has provided personal information through the App, please contact us so we can assist appropriately.


15. YOUR PRIVACY CHOICES

You may choose to skip profile setup, disable notifications, delete your local data, remove your profile information, or uninstall the App at any time. Most features remain available without creating any account.


16. CHANGES TO THIS PRIVACY POLICY

We may update this Privacy Policy from time to time to reflect new features, service improvements, legal requirements, or Google Play policy updates. When significant changes are made, the "Last Updated" date at the top of this Privacy Policy will be revised. We encourage users to review this Privacy Policy periodically.


17. CONTACT US

If you have any questions, suggestions, feedback, or concerns regarding this Privacy Policy or Tool Yaar, please contact us:

- Developer & Founder: Dipanshu Kumar

- Support Email: support.dipanshuhub@gmail.com

- Official Website: https://toolyaar.in

- Privacy Policy: https://toolyaar.in/privacy-policy


18. YOUR CONSENT

By downloading, installing, or using Tool Yaar : Smart Utilities, you acknowledge that you have read, understood, and agreed to this Privacy Policy. If you do not agree with this Privacy Policy, please discontinue using the App.