Privacy Policy

1. Information We Store Locally

The following is stored only on your device. Ordinary preferences use the standard platform store (SharedPreferences on Android, NSUserDefaults on iOS). None of this is sent to any Unixeer server.

• Callsign — used to overlay your identity on transmitted images and to pre-fill the Support form.
• Maidenhead grid locator — if you enter it; used for display and image overlays.
• Email address — if you enter it; used to pre-fill the Support form.
• App preferences — theme (light/dark), font scale and your selected SSTV mode/options.
• Your image gallery — the pictures you receive and the images you transmit, saved on the device with their mode, time and frequency for your own reference.

2. Microphone & Receiving Pictures

Ham Imaging uses your device microphone to listen to the SSTV audio coming from your radio's speaker and to decode it into a picture. Audio is processed only while you are receiving.

• The incoming sound is turned into an image on your device — that is the core purpose of receive mode.
• We (Unixeer) do not record, store or receive your audio on any server. Ham Imaging does not save audio recordings at all — the microphone feed is decoded as it arrives and discarded. You can point the app at a recording you made yourself with another app — an audio file (WAV, MP3, M4A, AAC, OGG or FLAC) or, in the Tools tab, a video — and have it decoded. It is read on your device only: the working copy the app makes is kept in its temporary storage while you are working with it and is never sent anywhere. Transmitting writes a short-lived WAV of the tones the app is about to play into its own cache so it can report progress; it is cleaned up afterwards and never leaves the device.
• If you do not grant microphone access you cannot decode live pictures off the air.

3. Camera, Photos & Saving Images

To transmit, you choose a picture. Ham Imaging can use your camera or your photo library to pick that image, and can save received or exported pictures back to your photo library when you ask it to.

• Images you pick are used only to build the SSTV transmission and your on-device gallery.
• Saving to the photo library happens only when you tap Save/Export. We never upload your photos anywhere.
• If you do not grant camera or photo access you can still receive pictures; you just won't be able to pick from those sources.

4. Transmitting on the Air (Images Are Public)

When you transmit, the app plays your picture out as sound so your radio can send it. On the air, amateur radio transmissions are public — anyone with a receiver may decode your image, and your callsign overlay identifies you.

• Transmission happens over the air through your own radio, not over the internet, and not through any Unixeer service.
• Keying the radio and putting a signal on the air is the licensed operator's own action and responsibility.

5. Licensing & Responsible Operation

Receiving pictures generally needs no licence. A valid amateur radio licence is required to transmit. You are solely responsible for operating within your licence class, privileges and local regulations, and for the content of your transmissions.

6. What We Do NOT Collect

• No Unixeer account, sign-up or login.
• No analytics, no crash-reporting telemetry sent to us.
• No device identifiers (no IDFA, no GAID).
• No advertising or third-party tracking SDKs.
• We collect nothing automatically. The only thing that ever reaches Unixeer is an email you compose and send yourself from the Support page or from a diagnostic report — it carries your callsign, your email address and your app version so we can reply to you. Nothing is sent unless you tap Send in your own mail app.
• Your images, your audio, your gallery and your SSTV QSO contacts never leave your device.

7. Children's Privacy

Ham Imaging is intended for amateur radio operators and listeners. The app shows no advertising, has no in-app purchases, and sends no personal data to Unixeer. Transmitting requires a valid licence. The app is designed to comply with COPPA, GDPR-K and equivalent child-privacy frameworks.

8. Data Retention & Deletion

Contacts you log in the SSTV QSO tab

When you work a station in the QSO tab, Ham Imaging keeps a record of that contact on your device: the other station's callsign, the signal reports exchanged, the UTC times, the SSTV mode, the frequency you typed and any note you added, together with the pictures sent and received. Some of this is another person's information, so it is worth being clear about it.

• It is stored only on your device, in the app's own storage. It is never uploaded, and Unixeer never sees it.
• It is not added to your photo library or to the app's Gallery. Pictures reach your photo library only when you tap Save to Photos, and leave the app only when you tap Share.
• Deleting a contact in the app, clearing the app's data, or uninstalling removes it. Resetting settings does NOT delete a contact you have finished — that is deliberate, so a settings reset cannot wipe your log. A contact still in progress is discarded, along with the remembered photo, so the QSO tab comes back the way it looks the first time you open it.

All settings, images and contact records are stored only on your device. To delete everything Ham Imaging holds, clear the app's data or uninstall it — that removes your stored callsign, grid, email, preferences, gallery and SSTV QSO contacts. There is no Unixeer account or server data to request deletion of.

9. Network Activity & Third-Party Services

By design, Ham Imaging works fully offline for receiving and transmitting — it needs no internet connection to decode or send pictures. It opens your mail app when you tap "Send email" on the Support page. It uses standard open-source Flutter packages (such as shared_preferences, image_picker, url_launcher, permission_handler and the audio libraries) to do its job. Unixeer does not integrate any advertising, analytics or tracking SDKs.

10. Changes to This Policy

As Ham Imaging gains features, this policy may be updated to stay accurate. The current version will always appear at this URL and ship with the app.

11. Contact

Questions about privacy? Email unixeer@gmail.com. We typically reply within a few days.