MeasureKit Privacy Policy

Effective: 2026-09-08 · App: MeasureKit (com.eltacrew.measurekit) · Developer: EltaCrew

Summary — MeasureKit has no server.
All measuring happens on your device using its sensors, with no sign-up or login. Microphone audio is never recorded or transmitted. Location is used only to work out true north, sunrise, sunset and altitude on the device itself, and is never sent anywhere. Uninstalling the app deletes your saved measurements.

1. Information processed

Item	Details	Stored
Microphone input	The sound meter computes loudness (dB) only. Nothing is recorded, stored, or transmitted.	Not stored
Camera image	The magnifier and the compass overlay show a live preview. The video itself is never stored or transmitted. Only when you tap the photo button in the magnifier is that single frame saved to your gallery (Pictures/MeasureKit).	Only when you tap
Location	Used by the compass only, to work out magnetic declination (true north), sunrise, sunset, altitude and coordinates on the device. Never stored, never transmitted, never used for ads. Received only while the compass screen is open (no background location).	Not stored
Sensor values	Accelerometer, magnetometer, and light sensor values drive the compass, level, inclinometer, vibration meter, and lux meter.	Not stored
Saved measurements	Only values you tap save on, with their time. Up to 200 entries.	On device
Preferences	Units, calibration, alert thresholds, theme, language	On device
Shared image	When you tap share, a screen image is briefly written to the app cache and handed to another app of your choosing.	App cache (temporary)

None of the above is transmitted to any external server. There is no account, and the developer cannot access your records.

2. Permissions

Permission	Purpose	Required
Microphone (RECORD_AUDIO)	Used only to measure loudness. No recording, storage, or transmission. Requested only when you open the sound meter.	Optional (sound meter only)
Camera (CAMERA)	Used for the magnifier and the compass overlay. The video is never stored or transmitted; only when you tap the photo button is a single frame saved to your gallery. Requested only when you open those screens.	Optional (magnifier, compass)
Location (ACCESS_COARSE_LOCATION, ACCESS_FINE_LOCATION)	Used only for the compass: true north, sunrise, sunset, altitude and coordinates. Everything is worked out on the device and is never stored, transmitted, or used for ads. Requested only when you tap for it on the compass screen, and background location is never requested.	Optional (compass only)
Vibrate (VIBRATE)	A short buzz when level is reached or a noise threshold is crossed.	Optional
Internet / Advertising ID (INTERNET, AD_ID)	For ads only. Measuring needs no network at all.	For ads

3. Accuracy

Phone sensors are not calibrated instruments. Values from this app are for reference only and must not be used for safety or legal decisions.

4. Advertising (third party)

MeasureKit shows ads via Google AdMob. AdMob (Google) may collect advertising ID and device information to serve ads. Users in the EEA and UK are shown a consent form (UMP) on first launch.

Google ads policy: policies.google.com/technologies/ads
Google privacy policy: policies.google.com/privacy

5. Retention & deletion

All records stay on your device.
Uninstalling the app permanently deletes all data. No separate deletion request is needed.
Images created for sharing live briefly in the app cache and disappear with the app. An image you already sent to another app stays in that app.

6. Children

MeasureKit is not directed at children and does not knowingly collect personal information from children.

7. Contact

Privacy inquiries: [email protected]

8. Changes

Any changes to this policy will be posted on this page.

Crash reporting and usage analytics (Firebase) — added 2026-09-18

The app uses Google Firebase Crashlytics and Firebase Analytics (Google LLC) to collect diagnostic information when the app crashes or hits an error, and statistics about which screens and features are used.

Data collected: crash logs (stack trace and the screen where the error occurred), device model, OS version, app version, an app-instance identifier (Firebase installation ID), app interactions (screen views, feature usage counts, session length, and the step and error type when a feature fails), and approximate location (country/region inferred from IP address).
Not collected: name, email, contact details, or anything you type into the app.
Purpose: fixing errors and improving the service. Not used for advertising or marketing.
Processor: Google LLC (Firebase). Data is stored on Google servers.
Retention: crash data for 90 days; usage statistics are deleted after the period set in Google's retention settings.
Opt-out: this collection is required for the app to function and cannot be switched off individually. Uninstalling the app stops further collection.

Details: Google Privacy Policy · Privacy and Security in Firebase

Payments (paid "Remove ads") — added 2026-10-26

In-app payments are handled by the Google Play billing system. We never receive your card number or other payment details.
In Google Play Console we can see the order number, product, date, amount and country of a purchase. We use them only to handle refunds and inquiries and to keep the transaction records required by Korean e-commerce law.
The app stores your purchase status (subscribed / paid once) only on your device and re-checks it with Google Play when it starts.
Payment steps (opening the payment sheet, result, purchase acknowledgement) and the purchase event Google Play reports (product, amount, currency) are processed by Firebase Analytics (test purchases are excluded).
If you email us a refund request, we use that email and order number only to process the refund.
Payment records (Google Play Console order records and refund-request emails) are kept for the periods required by Korean e-commerce law — contract and withdrawal records 5 years, payment and delivery records 5 years, complaint and dispute records 3 years — and then deleted.
Terms, refunds and cancellation: Terms of Service

International data transfers

The app uses Google LLC services for crash reporting, usage analytics, ads and payments, so the data described above is processed on Google's servers. If you do not want this, you can avoid the feature or uninstall the app.

Updated 2026-10-26: added payments (paid "Remove ads") and payment-record retention.

Updated 2026-10-19: added international transfers, failure details in analytics, app name line.