This Privacy Policy explains how MINER TYCOON LIMITED (“we”, “us”, “our”, the “Company”) handles information in connection with the mobile application Calcora (the “App”). We are committed to protecting your privacy. Calcora is designed to work primarily on your device and does not require you to create an account.
The following data is stored locally on your device (using the operating system’s standard local storage) and is not transmitted to us:
You can erase all of this at any time by deleting the App from your device.
We do not collect your name, email address, postal address, phone number, precise or approximate geolocation, contacts, photos, or biometric data. We do not require registration or sign-in.
When live market data is requested, or when advertisements are served, limited technical information (such as IP address, device type, operating-system version, and a non-persistent identifier) may be processed by the relevant third-party service to deliver the request and for fraud prevention and security. We do not use this information to identify you.
Calcora relies on a small number of third-party services. Each operates under its own privacy policy:
| Service / Purpose | Data involved |
|---|---|
| Apple App Store / StoreKit — processing subscriptions and purchases ($0.99/month, $4.99/year) | Purchase and receipt information handled by Apple. We receive only an anonymous indicator of whether a subscription is active. We never receive your payment card details. |
| Advertising provider (rewarded video and banner ads shown to non-subscribers) | Device and advertising identifiers, IP address, and ad-interaction data, processed by the ad network to serve and measure ads. |
| Exchange-rate and precious-metal price providers (live currency & metal quotes) | Anonymous price-data requests; IP address is processed by the data provider to fulfil the request. No personal data about you is sent. |
We encourage you to review the privacy policies of Apple and our advertising provider for details on their data practices.
Free users may watch a short rewarded advertisement to temporarily unlock a professional tool, and may see banner advertisements. Subscribing to Calcora Pro removes all advertising. On iOS, you control app tracking through the system App Tracking Transparency prompt and via Settings → Privacy & Security → Tracking. You may also reset or limit your advertising identifier in your device settings.
We do not use your information for automated decision-making that produces legal or similarly significant effects, and we do not sell or rent personal information.
Where the EU/UK General Data Protection Regulation applies, we rely on: performance of a contract (providing the App and subscriptions); legitimate interests (security, fraud prevention, basic ad delivery); and consent (personalized advertising/tracking, where applicable). You may withdraw consent at any time through your device settings.
Locally stored data remains on your device until you delete it or uninstall the App. We do not maintain servers that store your personal calculations or history. Information processed by third parties is retained according to their respective policies.
Calcora is a general-audience utility and is not directed to children under 13 (or the minimum age required in your jurisdiction). We do not knowingly collect personal information from children. If you believe a child has provided us personal information, please contact us and we will take appropriate steps to delete it.
Our third-party providers may process limited technical data in countries other than your own. Where required, such transfers are protected by appropriate safeguards such as standard contractual clauses.
Depending on your location, you may have rights to access, correct, delete, or restrict processing of personal data, to object to processing, and to data portability. Because Calcora stores your usage data locally and does not maintain user accounts, most of these rights can be exercised directly by managing or deleting data on your device. For requests regarding data handled by us, contact us using the details below.
We use reasonable technical and organizational measures to protect information. Network requests for market data and subscription validation are transmitted over encrypted connections (HTTPS). However, no method of transmission or storage is completely secure.
We may update this Privacy Policy from time to time. Material changes will be reflected by updating the “Last updated” date above and, where appropriate, through an in-App notice. Continued use of the App after changes become effective constitutes acceptance of the revised policy.
If you have questions or requests regarding this Privacy Policy or your data, contact: