Radon QA Ledger

Device Checks & Test Records

Only for iPhone

Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.

iPhone

The QA logbook for radon measurement pros: devices, calibration history, duplicates with RPD math and clean PDF reports. 100% offline. Radon QA Ledger keeps your measurement QA records in one place - across every device you run. YOUR DEVICES, DOCUMENTED - Device inventory with manufacturer, model, serial and type - Calibration and service history with providers, references and the next-due dates you enter - Free for 2 devices and 10 QA entries - every feature included QA ENTRIES WITHOUT PAPER - Duplicate, blank, spike, cross-check, background and performance-check entries - For duplicates, the app computes RPD from your two values and shows the number - interpreting it stays your call - Attach entries to projects and sites, then search by device, type, operator or date REPORTS THAT TAKE SECONDS - Device History, QA Activity and Duplicate Results PDFs for any date range PRIVATE BY DESIGN - 100% offline. No account, no cloud, no analytics PRICING Free for 2 devices and up to 10 QA entries; existing records stay viewable and exportable forever. Pro (unlimited devices and entries) is an auto-renewing subscription - $12.99/month or $99.99/year - with a 7-day free trial. It renews unless cancelled at least 24 hours before the period ends. Manage or cancel anytime in Settings > Apple ID > Subscriptions. For record-keeping only. The app does not measure radon, determine pass/fail, or provide health advice. Privacy Policy: https://goonobu-dot.github.io/batch18-pages/radonqa/privacy.html Support: https://goonobu-dot.github.io/batch18-pages/radonqa/support.html Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

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The developer, SHINOBU MIYAHIRA, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

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    Information

    Seller
    SHINOBU MIYAHIRA
    Size
    930.8 KB
    Category
    Business
    Compatibility
    Requires iOS 17.0 or later.
    • iPhone
      Requires iOS 17.0 or later.
    • Mac
      Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    English
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    © 2026 SHINOBU MIYAHIRA
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