# Radon QA Ledger — Device Checks & Test Records

> Device Checks & Test Records (iPhone/iPad app by SHINOBU MIYAHIRA.)

- Source: https://appshunter.io/ios/app/radon-qa-ledger/id6792272308 (this page in markdown: same URL + `.md`)
- Developer: [SHINOBU MIYAHIRA](https://appshunter.io/developer/6782739570)
- Category: Business, Productivity
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 1 MB
- Languages: American English
- Released: 2026-07-28
- Data updated: 2026-08-09
- User reviews in markdown: https://appshunter.io/ios/app/radon-qa-ledger/id6792272308/reviews.md

## What is Radon QA Ledger?

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/

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Pro Yearly | $99.99 | per year |
| Pro Monthly | $12.99 | per month |



## Version history (last 1 release)

### 1.0 — 2026-07-28

No release notes.

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All apps by SHINOBU MIYAHIRA: https://appshunter.io/developer/6782739570

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-09.*