This Privacy Policy explains how 10Bii Calculator Pro ("we", "our", or "the App") handles information when you use our Android application. 10Bii Calculator Pro is a financial and architectural calculator that provides time-value-of-money (TVM), amortization, cash flow, statistics, business percentage, interest conversion, and architectural scale-model calculations, along with saved history, ten memory registers, a formula library, and exportable PDF reports.
We do not collect personal information on our servers. The App has no account system, does not require registration or sign-in, and does not transmit the numbers or calculations you enter to us. All calculation functionality is performed locally on your device.
To provide its features, the App saves the following information only on your device in a local database:
The App does not access your contacts, camera, microphone, precise location, photos, files, or any other personal content.
All financial, statistical, and scale calculations are computed on your device. When you request a PDF report (for example, an amortization schedule), the App generates the document locally in its own cache and exports it using Android's system share sheet. The file is shared only with the destination you explicitly choose. We never receive a copy of any report or calculation.
All locally stored information is used solely to provide the App's features:
Your history, saved scales, and memory values are stored in the App's private database on your device. This data stays on your device and is not synced to our systems. You can delete individual history items, clear all history, clear all memory slots, or manage saved scales at any time from within the App.
The App has Android's Auto Backup enabled, which means your device may include the App's data in your regular Android/Google device backup if you have backup enabled in system settings. That backup is managed by Google under your device settings and Google's Privacy Policy; we do not control or have access to it. You can disable device backup in Android system settings. Uninstalling the App or clearing its data permanently removes the locally stored information from your device.
The App requests only the permissions required for its core functionality:
The App does not request access to your location, camera, microphone, contacts, photos, or personal files.
The App includes Google AdMob to display advertisements (banner, interstitial, native, and app-open ads). AdMob may independently collect certain information to serve ads, such as device identifiers (including the advertising ID), device information, IP address (which may be used to infer approximate location), and ad interaction data. This collection is governed by Google's Privacy Policy. You can opt out of personalized advertising through your device's Google Ads settings.
The App also uses Google Play services / Google Mobile Ads SDK components to support the advertising functionality described above. These services may process device and app signals to serve and measure ads but do not receive your calculations, history, saved scales, memory values, or exported reports. The App does not use analytics or crash-reporting services that receive the information you enter.
We do not sell, rent, or share your calculations, history, saved scales, memory values, or other content with anyone. The only data shared with third parties comes from Google AdMob's ad-serving mechanisms described above. AdMob does not receive access to your calculation content.
When you choose to export or share a PDF report, the file is created on your device and shared only through Android's share sheet to the destination you select. We never receive a copy.
Keeping your information in the App's private, on-device storage helps limit unnecessary exposure, but no electronic storage method is completely secure. Please use your device's screen lock and keep your device and operating system up to date.
10Bii Calculator Pro is a calculation tool only. Results are provided for informational and educational purposes and do not constitute financial, investment, tax, legal, or professional advice. You are solely responsible for verifying all calculations and for any decisions you make based on them.
The App is intended for a general audience and is not directed to children under 13. We do not knowingly collect personal information from children. If you believe a child has provided personal information through a third-party service used by the App, please contact us.
We may update this Privacy Policy periodically. Any modifications will be posted on this page with a revised "Last updated" date. Continued use of the App after changes constitutes acceptance of the updated policy.
If you have any questions or feedback regarding this Privacy Policy, please feel free to reach out: