Privacy Policy
SevenTask Calculator is designed to do calculations without asking you to create an account. Some information is stored on your device to make the app useful, and a few online features connect to third-party services.
Information stored on your device
Calculator history, preferences, pinned tools, custom calculators and some currency data may be saved in your browser or app storage. This helps the calculator remember your work. This data is not sent to SevenTask Calculator servers by the features described here. You can remove browser or app storage in your device settings; doing so may erase saved data.
Online services
- Currency conversion: exchange-rate information is requested from the Frankfurter API. The service may receive standard connection information, such as your IP address and request details.
- Fonts: the website may request fonts from Google Fonts. Google may receive standard connection information when fonts are loaded.
- Website hosting: the website is delivered through Cloudflare infrastructure, which may process technical request data to provide and protect the service.
These providers process information under their own privacy terms. The calculator does not include advertising or analytics trackers in the reviewed web source.
Children and sensitive information
The calculator is a general-purpose tool. Please do not enter sensitive personal information into custom calculator names, formulas or other fields.
Your choices and privacy rights
You can use device settings to clear locally saved data. Depending on where you live, you may have rights to access, correct, delete or object to certain processing. To ask a privacy question or make a request, contact us using the details below.
Changes and contact
We may update this policy when the app or its services change. We will post the current version on this page.
Privacy contact: [email protected]
Open-source software licences
Third-party notices · 25 October 2026. SevenTask Calculator includes or loads open-source typefaces and runtime components. Each remains the property of its authors and is provided under its own licence.
| Component | Where used | Licence | Source |
|---|---|---|---|
| DM Sans | Website and calculator typography | SIL Open Font License 1.1 | Google Fonts · OFL text |
| Fjalla One | Brand typography; a web font file is bundled | SIL Open Font License 1.1 | Google Fonts · OFL text |
| Manrope | Website and calculator typography | SIL Open Font License 1.1 | Google Fonts · OFL text |
| Michroma | Brand typography | SIL Open Font License 1.1 | Google Fonts · OFL text |
| Space Mono | Website typography | SIL Open Font License 1.1 | Google Fonts · OFL text |
Licence terms
The SIL Open Font License permits use, study, modification and redistribution of the fonts subject to its terms. Read the SIL Open Font License before redistributing font files. Typeface names and upstream notices should be preserved as required by that licence.
Desktop runtime
The Windows desktop app is built with Electron 44.7.2, which includes Chromium and Node.js. Electron is licensed under MIT. Electron publishes the Chromium and bundled runtime component notices with its release.
Android app
The Android app uses Android System WebView and platform libraries. Its bundled Fjalla One and Michroma fonts are covered by the licence texts above. The reviewed Android package contains no additional third-party runtime libraries.
Scope
These notices cover the third-party fonts and desktop runtime components identified in the released website and application packages. SevenTask Calculator code and brand assets are not relicensed by this page. For licence questions, contact [email protected].