# Fraction Calculator Privacy Policy
**JanoGroup LLC**
**Effective date:** October 12, 2026
**Last updated:** October 12, 2026
This Privacy Policy explains how JanoGroup LLC ("JanoGroup," "we," "us," or "our"), based in Washington, DC, USA, handles information in connection with the Fraction Calculator application and related support services (the "Service"). Contact us at **janogroupllc@gmail.com**.
**At a glance:** Fraction Calculator performs calculations and generates step-by-step explanations on your device. It does not require a JanoGroup account or upload your entered equations to a JanoGroup calculation service. It stores certain preferences locally and connects to app stores, RevenueCat for subscriptions, and Google AdMob for advertising during free access on supported mobile platforms. These connections can involve personal information. Premium removes the app's banner and interstitial ads; it does not eliminate subscription, store, support, or all service-provider processing.
## 1. Scope and roles
This policy covers information we process or make available through the Service. JanoGroup is responsible for its processing of personal information. Providers may process information on our behalf or independently for their own purposes, depending on the service and applicable agreements. Their notices supplement this policy. External websites, app stores, advertisements, and services you choose to visit have their own privacy practices.
This policy is a notice, not a request for blanket consent. Where processing requires consent, that consent must be obtained separately through an appropriate choice or permission process.
## 2. Information handled by the Service
### Calculations, explanations, and history
Fractions, mixed numbers, whole numbers, decimals, mathematical expressions, results, and step-by-step explanations are processed on your device. The app does not send the equations or values you enter to our servers, RevenueCat, or advertising providers as part of its calculation functionality. It does not use a remote AI service to solve your equations.
The app keeps a limited calculation history in memory for the current session. The current version retains up to 50 successful calculations and does not provide a JanoGroup cloud-sync service for this history. History is not deliberately saved by the app as a persistent, cross-session history.
If you send an equation, screenshot, or diagnostic information to us for support, the information you choose to send becomes part of your support correspondence.
### Local preferences and app activity
The app stores information on your device, such as your selected calculator color theme, onboarding completion, calculation counts used to control advertising frequency, and review-prompt activity. Sound preferences are used to control local keypad feedback. Sound playback uses a bundled audio file and does not require voice recording.
RevenueCat and other integrated SDKs may also maintain local identifiers, caches, or subscription-related state needed to operate their services.
Device or operating-system backups may include persistent local app data, depending on your Apple, Google, or other backup settings. Diagnostic output can include technical status, product or offering information, and errors. Information you voluntarily send to support may contain additional details.
### Subscriptions and purchases
Apple or Google handles payment and billing for purchases made through its store. RevenueCat helps us retrieve subscription offerings, display available products and prices, determine introductory-offer eligibility, verify purchases, restore eligible purchases, and maintain Premium entitlements.
Information involved may include:
- An SDK-generated app-user identifier, even though you do not create a JanoGroup account.
- Purchase and transaction identifiers, receipts, or purchase tokens.
- Product identifiers, purchase history, subscription status, and entitlement information.
- Trial or introductory-offer eligibility.
- Store, country, device, app, and network information processed by the SDK or store.
We can access subscription-related records through our RevenueCat project. We do not receive your full payment-card details from app-store checkout.
### Advertising
Free access on supported mobile platforms includes Google AdMob banner and interstitial advertising. Google and participating advertising providers may process advertising identifiers where available and permitted, IP addresses, device and app information, approximate location derived from network data, ad impressions and interactions, and diagnostic information to deliver, measure, secure, and improve ads.
Depending on permissions, consent, region, and provider configuration, advertising may be personalized or non-personalized. Non-personalized ads can still involve personal information.
On iOS, the app uses Apple's App Tracking Transparency permission mechanism. Declining tracking permission does not stop all networking, advertising, fraud prevention, or subscription processing. Device tracking permission is not a substitute for any additional consent or opt-out required by applicable law.
Active Premium access removes the app's banner and interstitial ads. An advertising SDK may already have been initialized or processed information before Premium access was recognized. Premium does not remove processing necessary for purchases, entitlement verification, support, or other services described in this policy.
### Reviews, external links, and support
Native review prompts are handled by the applicable app store. If you submit a public store review, the store determines how that review and your reviewer identity are displayed and processed.
When you open our website, a subscription-management page, a legal document, or another external link, the destination may receive network information and process data under its own notice.
If you contact us, we receive your email address, message, attachments, and any details you voluntarily provide. We may maintain correspondence and information necessary to resolve support, billing, privacy, security, or legal requests. Do not email passwords, payment-card numbers, identity documents, or other sensitive information unless a secure and necessary verification method has been specifically agreed.
The calculator does not require GPS location, contacts, camera, or microphone input to perform calculations. This does not restrict the independent provider processing described above, including approximate location inferred from an IP address.
## 3. Purposes and legal bases
We use the information described above to:
- Provide calculator features, explanations, and preferences.
- Deliver, verify, and restore subscriptions and Premium access.
- Show and measure advertising that funds free access.
- Manage onboarding, advertising frequency, and review prompts.
- Respond to support and privacy requests.
- Diagnose failures, prevent fraud and abuse, comply with legal obligations, and establish or defend legal claims.
Where EEA, UK, or similar law requires a legal basis, we rely, as appropriate to the particular processing, on performance of a contract for requested Service features, compliance with legal obligations, legitimate interests in operating a reliable and secure Service and resolving support or disputes where not overridden by your rights, or consent for processing that requires it, including relevant tracking or advertising technologies.
Optional processing is not made necessary merely by describing it in this policy. You may withdraw consent without affecting the lawfulness of earlier processing.
## 4. Disclosure of information
Information may be disclosed to:
- **Operational providers:** app stores, RevenueCat, email or support providers, and relevant infrastructure services for the purposes described above.
- **Advertising providers:** Google and participating partners for ad delivery, measurement, security, and any legally permitted personalization.
- **Recipients you choose:** for example, when you send information to support or interact with an external service.
- **Legal and safety recipients:** when required by law or reasonably necessary to investigate abuse, protect rights or safety, or pursue or defend legal claims, subject to applicable safeguards.
- **Parties involved in business changes:** relevant information may be transferred in a merger, acquisition, restructuring, or asset transaction, subject to applicable law and appropriate protections.
We do not sell your entered equations or calculation results. However, advertising-related disclosures of identifiers or activity can qualify as a "sale," "sharing," or targeted advertising under some privacy laws even without a money payment. We do not represent that an ad-supported app collects or shares no personal information. Applicable opt-out rights are described below.
## 5. Retention
Calculation history is held in memory for the current session rather than deliberately saved as a persistent history. Persistent local preferences and counters generally remain until you change or remove them, clear app data where supported, or uninstall the app. Operating-system backups and restoration can preserve or restore local data.
Uninstalling the app does not delete store purchase history or automatically cancel a subscription.
We retain support correspondence, subscription-related records accessible to us, and legal or security records for as long as reasonably needed for the relevant purpose, taking into account active subscriptions, dispute resolution, fraud prevention, contractual requirements, and applicable legal retention duties. There is no single retention period for every category.
We assess deletion or anonymization requests against these requirements. Independent providers have their own retention schedules; deleting local app data does not erase store or provider records outside our control.
## 6. Your settings and choices
- Change calculator colors and enable or disable keypad sound in the app's Settings.
- Clear calculation history using the available History control. Clear app storage where your platform supports it, or uninstall to remove persistent local app storage, subject to backups.
- Manage iOS tracking permissions or Android advertising-identifier and privacy settings through your device controls. These controls do not necessarily cover every regional advertising opt-out.
- Manage or cancel subscriptions in Apple App Store or Google Play account settings. Restore Purchases can recover eligible entitlements; it is not a deletion tool.
- Contact us for privacy requests or advertising-related opt-outs at **janogroupllc@gmail.com**, with the subject **"Fraction Calculator privacy request."** Do not assume there is an in-app regional consent or universal opt-out control unless one is actually presented.
Restricting necessary network access may affect subscriptions, purchase restoration, or other online features. Fraction calculations themselves are performed locally. These limitations do not remove your right to decline optional processing where applicable law requires that choice.
## 7. Regional privacy rights
Depending on your residence and the law that applies to our processing, you may have rights to request access or a copy, correction, deletion, portability, restriction, objection to certain processing, withdrawal of consent, and opt-out of sale, sharing, or targeted advertising. You may also have rights concerning certain automated decisions. The Service is not designed to make decisions producing legal or similarly significant effects about you.
Residents of California and other applicable US states may exercise the rights provided by their state's law, including non-discrimination for exercising protected rights. Information categories involved can include identifiers, commercial subscription information, internet, app, or advertising activity, approximate location, technical device information, and information you provide in correspondence. Sources, purposes, and recipient categories are described in Sections 2-4. These rights apply where the relevant law covers us and the processing in question.
Send requests to the email above. Explain the right you wish to exercise and the platform involved. We may need proportionate verification or limited information to locate the relevant subscription or SDK record. Because there is no JanoGroup login, an email alone may not identify an installation.
An authorized agent may submit a request subject to legally permitted authority and verification checks. We respond within applicable legal periods and explain any refusal and available appeal process. Where applicable, you may appeal by emailing us with the subject **"Privacy appeal."**
We will honor legally required opt-out preference signals where they apply to the relevant service and are technically received. This notice does not claim that the mobile app implements a browser-based signal or an automatic in-app opt-out switch.
EEA and UK users may complain to their competent data-protection supervisory authority. Users elsewhere may contact the relevant privacy regulator or enforcement authority. Contacting us first is welcome but does not remove that right.
## 8. International processing and security
JanoGroup is based in the United States. Providers may process information in the US and other countries whose laws differ from those where you live. Where legally required, appropriate transfer safeguards must apply, such as approved contractual clauses or another valid transfer mechanism. Contact us for information about safeguards relevant to information we control.
We use reasonable safeguards appropriate to the information and Service. No device, transmission method, or service can be guaranteed completely secure. Protect your device, store account, and backups. Notify us of a suspected Service-related privacy or security incident without sending unnecessary sensitive data.
## 9. Children
The Service is a general-audience utility and is not directed to children under 13 or intended to collect their personal information knowingly. Where a higher age or parental authorization is required locally, those rules apply.
If you believe a child has provided personal information to us improperly, contact us so we can investigate and take appropriate action. A store age rating does not replace applicable privacy or parental-consent requirements.
## 10. Provider notices
Relevant provider resources include:
- [RevenueCat Privacy Policy](https://www.revenuecat.com/privacy/)
- [Google Privacy Policy](https://policies.google.com/privacy)
- [Google advertising information](https://policies.google.com/technologies/ads)
- [Apple privacy information](https://www.apple.com/legal/privacy/)
These links identify relevant providers, not endorsements or a guarantee of their policies. Provider features, partners, and notices may change.
## 11. Updates and contact
We may revise this policy to reflect Service, provider, or legal changes. The revised version will show an updated date. We will provide additional notice or obtain consent for material changes where required. Publication or continued use alone does not replace required consent.
**JanoGroup LLC**
Washington, DC, USA
**Email:** [janogroupllc@gmail.com](mailto:janogroupllc@gmail.com)
**Website:** [https://janogroupllc.com](https://janogroupllc.com/)