Privacy policy for Roof & Rafter Calculator

Last updated: 29 October 2026

JiffyJoker publishes Roof & Rafter Calculator for Android (package com.jiffyjoker.roofrafter). This policy explains how the app handles information.

Calculator information

The app does not require an account. Measurements, calculation inputs and results, saved projects, presets, theme choice, and Pro access status are stored in the app on your device. JiffyJoker does not receive these records or operate a server for them. Core calculations work offline. Local app data can be removed by clearing the app's storage or uninstalling it.

If you export a PDF, it is created on your device and shared only when you choose an app or destination in Android's share sheet. A recipient you choose may handle the shared PDF under its own privacy practices.

Advertising and privacy choices

The free version uses Google Mobile Ads and Google's User Messaging Platform (UMP). UMP manages consent and privacy choices; ad requests are made when the SDK and your choices allow them. Where required, the app provides a control to revisit privacy options. Pro users do not receive ad requests.

Google's Mobile Ads SDK may automatically collect and share an IP address (which can indicate general location), app interactions, diagnostic and performance information, and device or account identifiers, for advertising, analytics, and fraud prevention. Google states that this data is encrypted in transit using TLS. Data use can depend on the SDK, region, settings, and privacy choices. See Google's Google Play data disclosure for the Android Mobile Ads SDK and Google Privacy Policy.

In-app purchase

Roof & Rafter Pro is an optional one-time purchase processed by Google Play. The app receives purchase status, verifies the purchase using its signature, and stores Pro access on this device so it can remain available offline. Google Play processes payment information; JiffyJoker does not receive your payment-card or bank details. Purchase records and payment data are handled by Google under its own terms and privacy practices.

Data handled by JiffyJoker

JiffyJoker does not receive calculator entries, saved projects, or PDFs unless you choose to share a PDF with us. The app does not include a separate analytics service or developer-operated account system. If you contact us by email, we receive the information you choose to include and use it to respond.

Retention and deletion

Calculator records remain in the app's local storage until you clear that storage or uninstall the app. Google handles advertising, consent, and purchase information under its own retention and deletion practices.

Children

This general-purpose construction calculator is not designed specifically for children. JiffyJoker does not knowingly collect personal information directly from children through the app.

Changes and contact

This policy may be updated when the app or its data practices change. For privacy questions, contact jiffyjoker1@gmail.com.