Effective date: Nov 12, 2026 ·
1. Introduction
This Privacy Policy explains how Speedy Calculator (“we”, “us”, “our”) handles information when you use the Smart Calculator mobile app for Android (the “App”). By using the App, you agree to this policy.
The App does not ask you to create an account, and we do not collect your name, email address, phone number or contacts. Questions about this policy can be sent to support.app@speedycalculator.com.
2. Information we collect
We do not collect or store any personal information on our servers. The App works on your device, and the only information collected is by our advertising partner, Google.
| Information | Collected by | Purpose |
|---|---|---|
| Calculations, saved history and settings (theme, scientific mode) | Stored only on your device | To show your history and remember your preferences |
| Advertising ID (Android) | Google AdMob | To show ads, measure ads and, with consent, personalise ads |
| IP address and approximate location derived from it | Google AdMob | Ad delivery, fraud prevention, regional consent rules |
| Device information (model, OS version, language, app version) | Google AdMob | Ad delivery and performance |
| Ad interactions (impressions, clicks) and diagnostic/crash data related to ads | Google AdMob | Ad measurement and preventing invalid traffic |
| Your consent choices | Google User Messaging Platform (UMP) | To remember your privacy choices |
We never see your calculations, and we do not sell your personal information.
3. Advertising and third-party services
The App is free and supported by ads served by Google AdMob (banner, native, interstitial and app open ads). Google may use cookies, the advertising ID and similar technologies to show ads based on your interests or on the content you see.
The App uses these third-party services, each with its own privacy policy:
- Google AdMob: Google Privacy Policy
- How Google uses data from apps that use its services: policies.google.com/technologies/partner-sites
- Google advertising and ads personalisation: policies.google.com/technologies/ads
- Google User Messaging Platform (consent): covered by the Google Privacy Policy above
Information sent to Google may be transferred to and processed in countries other than yours, including the United States.
4. Your consent and choices
- EEA, UK and Switzerland: when you first open the App, a consent form (Google UMP) asks whether ads may be personalised. Ads are only requested after this choice. You can change it any time in the App under ⋮ menu → Privacy settings.
- US states with privacy laws (such as California): you can opt out of the “sale” or “sharing” of personal information for targeted advertising through the same Privacy settings option, where shown.
- Advertising ID: you can reset or delete it on your device in Settings → Privacy → Ads (wording varies by device). After deletion, apps receive no advertising ID and you will see non-personalised ads.
- Other ways to opt out: Google My Ad Center controls ads personalisation for your Google account.
If you live in the EEA or UK, you also have the right to access, correct or delete your personal data and to complain to your local data protection authority. Because we hold no personal data ourselves, requests about ad data are handled by Google; we will help you with any request sent to us.
5. Data storage, deletion and permissions
Your calculation history and settings are stored only on your device (up to 200 history entries). If Android backup is turned on, this data may be included in your device backup to your Google account, managed by Google under its own policy.
You can delete your data at any time:
- Delete single entries, or tap Clear all, on the History screen.
- Clear the App’s storage in Settings → Apps → Smart Calculator → Storage.
- Uninstall the App, which removes all data stored by it.
The App asks for no dangerous permissions. It uses only:
- Internet and Network state: to load ads.
- Advertising ID: added by the Google Mobile Ads SDK, used as described in section 2.
Data exchanged with Google is encrypted in transit (HTTPS).
6. Children, changes and contact
Children’s privacy. The App is a general-audience tool and is not directed at children under 13. We do not knowingly collect personal information from children. If you believe a child has provided personal information through the App, contact us and we will help remove it.
Changes to this policy. We may update this policy when the App or the law changes. The new version will be posted on this page with a new effective date. Continuing to use the App after a change means you accept the updated policy.
Contact us. For any question or request about this policy or your data, email support.app@speedycalculator.com.