Calculator App — Calculate, Secure, Protect
Welcome to fexo calculator — your secure calculator with a private vault. At Fexo FZC LLC, we believe privacy is a fundamental right. This Privacy Policy explains how we handle information when you use our mobile application ("the App"), which lets you perform everyday calculations while keeping your private photos, videos, audio files, and contacts secured in a hidden vault.
By using fexo calculator, you agree to the practices described in this policy. If you do not agree, please discontinue use of the App.
We are committed to minimal data collection. fexo calculator does not require accounts, and we never collect personally identifiable information unless strictly necessary for functionality.
| Data Type | Description | Purpose |
|---|---|---|
| Device Info | Model, OS version, app version | Optimize performance and compatibility |
| Crash Reports | Anonymous stack traces & diagnostics | Fix bugs and improve stability |
| Usage Analytics | Feature interactions (calculator/vault/settings) | Understand usage patterns to enhance UX |
We do NOT: Sell personal information, upload your vault content, access your files for any purpose other than the features you request, track your location, or use data for advertising profiling.
Local-First Approach: All vault content you secure, calculation history, and app preferences are stored exclusively on your device. We maintain no remote database containing your vault content.
Security Practices: We follow industry best practices: encrypted data transmission (where applicable), secure API communication only for crash reporting, and regular security reviews.
Retention: Since all vault data lives on your device, you can clear app data or uninstall the App to permanently remove all information at any time.
fexo calculator requests only the permissions necessary to deliver its calculator and private vault features. Below is a full breakdown:
| Permission | Why It's Required |
|---|---|
| Network Status | Checks whether your device has an active internet connection, so online features are only attempted when a connection is available. |
| Camera | Lets you capture photos and videos directly into your private vault using the in-app camera. Only active when you use this feature. |
| Internet | Connects to the internet to load app content, configuration, and ads. Your vault content is never uploaded. |
| Read Contacts | Reads your device contact list so you can choose contacts to import into your private contacts vault. |
| Read Storage (Legacy) | Reads images, videos, and files from device storage on older Android versions so you can import them into the vault. |
| Audio Access | Accesses audio files on your device so you can move them into your private audio vault. |
| Photo Access | Accesses photos on your device so you can import them into your private photo vault. |
| Video Access | Accesses videos on your device so you can import them into your private video vault. |
| Selected Media Access | On newer Android versions, lets you share only the specific photos and videos you select with the app, instead of your entire gallery. |
| Microphone | Records voice memos through the microphone directly into your audio vault. Never runs in the background. |
| Biometric Unlock | Authenticates you with your device's biometrics so you can unlock the app quickly and securely. |
| Fingerprint (Legacy) | Supports fingerprint unlock on older Android devices as an alternative to your PIN. |
| Vibration | Vibrates the device to give haptic feedback on calculator keys and lock events. |
| Write Contacts | Adds or modifies contacts on your device when you restore entries from your contacts vault. |
| Write Storage (Legacy) | Saves images, videos, and files back to your device storage on older Android versions when you export them from the vault. |
We use limited third-party tools solely to maintain app quality:
No advertising SDKs, no tracking SDKs for cross-app profiling, and no data brokers. Your recordings stay yours, always.
Depending on your region (GDPR, CCPA, etc.), you have rights over your data. Since all user-generated content is stored locally:
fexo calculator is not directed to children under 13. We do not knowingly collect personal information from minors. If a parent or guardian becomes aware that a child has provided us with information, please contact us and we will ensure data is promptly removed. Camera and microphone permissions should be used under parental guidance for younger users.
We may update this policy to reflect operational, legal, or technical changes. The "Effective Date" at the top indicates the latest revision. Continued use of the app after changes constitutes acceptance. For significant updates, we will notify you via in-app notice or on our website.
If you have any questions about this Privacy Policy, your data, or how we handle permissions, please reach out — we're happy to help.
Fexo FZC LLC
Business Centre, Sharjah Publishing City Free Zone, Sharjah, United Arab Emirates