Last Updated: August 13, 2026
This Privacy Policy describes how AllCalc‑All‑in‑One Calculator ("the App", "we", "us", or "our") handles information when you download, install, and use our mobile application, available on the Apple App Store and Google Play.
In short: The App does not require an account, we do not collect your name, email, or contact details, and your data never leaves your device.
By using the App, you agree to this Privacy Policy.
We do not ask for or collect:
Names, email addresses, phone numbers, or any other contact information
Account credentials (the App has no sign‑up or login)
Precise location data
Photos, contacts, or other device content
Usage logs or analytics data that could identify you
Financial information (beyond what you voluntarily input for calculation purposes)
The App saves the following data locally on your device only:
Calculation history (complete expressions and results)
Custom exchange rates (user‑entered rates overriding API data)
Coupon records (name, value, expiry date, status)
Price comparison records
User preferences and settings (unit system, notification preferences, etc.)
This data:
Never leaves your device
Is not accessible to us
Is not stored on any cloud service or server
Is deleted when you uninstall the App or clear the App's data in your device settings
Note: If you have enabled iCloud backup (iOS) or Google Drive backup (Android), your device's operating system may include App data in system backups according to your device settings.
The App requests the following permissions only when necessary:
Microphone
Noise Meter feature — to measure ambient decibel levels
Optional — only if you use Noise Meter
Notifications
Coupon Expiry Reminder — to send local reminders for expiring coupons
Optional — only if you enable reminders
We do not request any other permissions. You may deny or revoke these permissions at any time through your device settings.
The App interacts with the following third‑party services:
Purpose: Fetch real‑time currency exchange rates
Data transmitted: None — the App sends only currency codes (e.g., USD, EUR) as query parameters, no personal data is transmitted
Data stored: Exchange rates are cached locally on your device
Purpose: Provide IP geolocation information when you use the IP Lookup feature
Data transmitted: Your IP address is transmitted to the lookup service to return location data
Note: This is a one‑time query; no IP data is stored by the App
Purpose: Measure network speed when you use the Internet Speed Test feature
Data transmitted: Network test data (download/upload packets)
Note: No personal data is transmitted or stored
When you download the App from the App Store or Google Play, Apple or Google may process information under their own privacy policies (e.g., purchases, device identifiers for the store, crash diagnostics you opt into). We do not control these third parties; please read their policies for details:
Apple Privacy Policy: https://www.apple.com/legal/privacy/
Google Privacy Policy: https://policies.google.com/privacy
The App is not intended for children under the age of 13 (or the applicable age of consent in your jurisdiction). We do not knowingly collect personal information from children. If you believe we have inadvertently received information from a child that we should delete, please contact us and we will take reasonable steps to respond.
We are committed to protecting your privacy. Since all data is stored locally on your device, we do not operate servers that could be compromised to access your data. We recommend that you secure your device with a passcode or biometric lock to prevent unauthorized access to locally stored data.
We may update this Privacy Policy from time to time. We will notify you of any material changes by posting the updated policy on this page and updating the "Last Updated" date.
We encourage you to review this Privacy Policy periodically. Your continued use of the App after any changes constitutes your acceptance of the revised policy.
If you have any questions, concerns, or requests regarding this Privacy Policy or your privacy, please contact us at:
Email: harrietpang001@outlook.com
This Privacy Policy is designed to comply with:
Apple App Store — Guideline 5.1.1(i)
Google Play Store — Data Safety and privacy policy requirement
GDPR (EU/EEA/UK)
CCPA/CPRA (California)