BreakerSonar

Privacy Policy

Last updated: 18 September 2026

What the app handles, and where it stays

Your panel map	Stored only on the phone that made it. We never receive it.
The two-phone link	The phones talk directly to each other over your own local Wi-Fi. The data never leaves your network and never reaches us.
Power events	Detected on the device from the operating system's charging state. No battery history is collected or transmitted.
Account	There is none. The app asks for no name, e-mail or phone number.

Your phone’s own backup

Your panel map is included in your phone's own backup — Android Auto Backup, or iCloud Backup on an iPhone — if you have it switched on, and that is what puts the map back when you replace the phone. The pairing secret the two phones share is deliberately left out of it, so a restored backup can never hand a new phone a pairing nobody granted it. A backup like that is made by your phone into your own Google or Apple account, under your control and your provider’s terms. It never reaches us, and you can switch it off in your phone’s settings.

This website

This site is served by Cloudflare Pages, which counts visits through Cloudflare Web Analytics — it sets no cookies, stores no identifier and does not follow you across sites. The pages themselves set no cookies, contain no forms and load nothing from anywhere else.

Crash and error reporting

To find and fix defects, the app sends crash and error reports to Sentry, our error-monitoring provider. A report contains the error itself, a technical breadcrumb trail, the app version, the device model and the operating system version. Reports contain no personal content by construction: nothing you type or map is ever attached, the breadcrumb trail is trimmed to technical operation names before sending, and session tracking is switched off so a report carries no installation identifier. Like any request over the internet a report arrives from your IP address; the project is configured not to store it. Reports are never sent from development builds. Crash reports contain no part of your panel map.

You can switch this off. Settings → Send crash reports stops the app sending anything at all; everything else keeps working. Reports are processed on Sentry's servers in the United States and are deleted automatically after 90 days.

Feedback you send

Settings → Send feedback is the one place where something you wrote leaves the phone, and only because you wrote it and tapped send. It carries your message and the diagnostic journal the app shows you in full beforehand, to the same provider as the crash reports. Two things travel only if you choose them: your email address, if you type one so that a person can reply, and a picture of the app’s own screen, if you switch that on for that one message. The picture is the screen you were looking at and you see it before it goes; it is never a photo, a recording or a file from your phone. If crash reporting is switched off, the app opens your own mail app instead and sends nothing itself. Feedback is deleted after 90 days like the reports; a feedback carrying your email address can be found and deleted sooner if you ask, and one sent without an address cannot be found at all.

Purchases

Payments are processed entirely by Google Play or the Apple App Store. We never see or store your card details, address or payment identity — the app only learns whether a purchase is active.

Advertising and tracking

The app contains no advertising, no analytics SDK, no advertising identifier and no cross-app or cross-site tracking of any kind. Nothing you do in the app is sold or shared for marketing.

Children

The app is a household utility and is not directed at children under 13.

Your data, your control

Deleting a map inside the app, or uninstalling the app, removes the data permanently from the device. Because we operate no accounts and no servers holding your content, there is nothing for us to delete on our side and nothing to export from us. If you have any question about your data, write to [email protected] and you will get an answer from a person.

If you are in the EU, the UK or California

The controller of the little data described above is Dmitrii Zusmanovich, an independent developer established in Israel, reachable at [email protected] — so Israeli privacy law applies to us alongside the law of the country you live in. Crash reports are processed on the basis of legitimate interest — keeping the app from crashing — and you can withdraw from that at any time with the switch in Settings, with no effect on anything else. Because there is no account and no server of ours, there is nothing about you for us to look up, correct, port or erase: the crash reports above carry nothing that identifies you, so we could not find yours even in order to delete it, and they are deleted after 90 days regardless. Everything else exists on your own device and under your control. You retain the right to lodge a complaint with your national data-protection authority. We do not sell or share personal information, and we have no “sale” or “targeted advertising” to opt out of.

Changes

If this policy changes, the date at the top changes with it, and the updated text is published on this page before the release that relies on it.

Contact

BreakerSonar is made by Dmitrii Zusmanovich, an independent developer. Questions, requests or complaints: [email protected].