Privacy Policy

HF Planner : Ham Radio guide
Package ID: com.devvratkalia.hfplannerhamradioguide
Publisher: Dev_K
Effective date: 17 August 2026

This policy explains what the HF Planner : Ham Radio guide app (the “App”) does with data. It is written in plain English, and it is meant to be accurate rather than reassuring: the App shows ads, and ad software collects device identifiers. That is described in full below.

The short version

1. Who is responsible

Dev_K (“we”, “us”) publishes the App and is the data controller for the processing described here, for the purposes of the EU/UK General Data Protection Regulation (GDPR). Contact: wekstuff@gmail.com.

Note that the advertising networks reached through mediation act as controllers of the data they collect for their own advertising purposes. We do not control what they do with it beyond the settings and consent signals we pass to them.

2. What the App does with the information you enter

The App is an HF propagation planning tool. To produce a plan, you enter or select things like transmit and receive locations, the time window you want to plan for, and station parameters. The App combines those inputs with solar-cycle, space-weather and weather data to produce a 15-minute frequency matrix, a PDF report, and RF pattern charts.

• Your planning inputs, saved plans, settings and generated PDF reports are stored locally on your device. We do not have a user database and cannot read them.
• A PDF or chart leaves your device only when you choose to share, export, print, or email it. What happens to it after that is governed by whatever app or service you send it to.
• To fetch solar, space-weather and weather data, the App makes requests over the internet. Such a request necessarily discloses your device’s IP address and the parameters of the request (for example the coordinates and time range you are planning for) to the data source and to the networks in between. We do not attach an identifier or profile to those requests.
• The map view loads map tiles from a third-party map tile service. Loading a tile discloses your device’s IP address and the area of the map you are looking at to that service, on the same terms as any other web request. Tiles are cached on your device.
• If you allow the App to use your device location to fill in a station position, that position is used on the device for the calculation and is not sent to advertising partners. You can refuse or revoke the permission in your operating system settings and enter coordinates manually instead.

3. What the advertising software collects

The App includes Unity LevelPlay mediation (ironSource) with the Unity Ads adapter and serves banner, interstitial, and rewarded ads. This software collects the following whether or not you interact with an ad, and it is the main reason this policy exists.

None of this is linked by us to a name or an account, because there are no accounts. It is still personal data under GDPR, because an advertising identifier singles out a device.

Your approximate or precise location is not passed to the advertising software. The location permission, if you grant it, is used only to fill in a station position for a propagation calculation on your device.

4. Consent, and how to limit ad tracking

• In the EEA, the UK and Switzerland, the App asks for your consent through a certified consent management platform before advertising identifiers are collected for personalised advertising. You can change or withdraw that choice at any time from the privacy or settings screen in the App.
• On iOS, the App must ask for App Tracking Transparency permission before the IDFA can be read. If you decline, no IDFA is read. You can change this later in Settings → Privacy & Security → Tracking.
• On Android, you can reset or delete your Advertising ID in Settings → Google → Ads, and opt out of ad personalisation there.
• Turning off personalisation does not remove ads; it makes them less targeted.
• Buying a Pro subscription removes ads going forward. It does not delete data that ad networks collected earlier — for that, contact the network or use the controls above.

5. Subscriptions and payments

The App offers optional Pro subscriptions (pro_monthly, pro_yearly) through the in-app purchase system of the store you installed the App from. Google Play or Apple processes the payment, holds your payment details, and manages renewal and cancellation. We receive only the anonymous purchase and entitlement status needed to unlock Pro features on your device, and aggregate, non-identifying sales reports from the store. We never see your card number, billing address, or store account credentials.

The App may occasionally ask you to rate it. That prompt is presented and handled by Google Play or the App Store; we do not learn whether or how you rated it.

6. Device permissions

You can revoke any optional permission at any time in your operating system settings; the App will fall back to manual entry or an unlocked start.

7. App lock, biometrics and secure storage

• If you enable the app lock, the App asks your operating system to verify you with your fingerprint, face, or device passcode. The comparison happens inside your device’s secure hardware. Your fingerprint or face template is never given to the App, never leaves your device, and is never sent to us or to anyone else. The App receives only a yes-or-no answer.
• Sensitive values the App needs to keep (such as the app-lock preference and any stored keys) are held in the iOS Keychain or the Android Keystore-backed encrypted store, not in plain files.
• The app lock protects the App on an unlocked device. It is not full-disk encryption and it does not protect against someone who controls your device credential or a rooted/jailbroken system.

8. Who we share data with

We do not sell your data, and we have no user database to sell. Data leaves your device only to:

• Unity LevelPlay / ironSource, Unity Ads and the ad networks they mediate — the data in section 3, for advertising and tracking.
• Solar, space-weather and weather data providers — your IP address and the parameters of your request, as described in section 2.
• The map tile provider — your IP address and the map area requested.
• Google Play or Apple — purchase, subscription and review handling, and crash reporting where you have opted into it at the operating-system level.
• Anyone you send a report to — only when you choose to share, print or export it.

9. Retention and deletion

• Your plans, settings and reports stay on your device until you delete them in the App, clear the App’s storage, or uninstall the App. Uninstalling deletes them. We hold no copy, so there is nothing for us to delete on your behalf and no way for us to restore anything.
• Data collected by the ad networks is retained under their policies for their own retention periods. Use the controls in section 4, or contact the network directly.
• Purchase records are retained by Google or Apple under their policies.

10. Your rights

If you are in the EEA, the UK, or a jurisdiction with comparable law, you have rights of access, rectification, erasure, restriction, objection, and data portability, and the right to withdraw consent at any time. Because we hold no identifiable data about you, in practice most of these are exercised by acting on your own device (delete the App’s data) or on the ad identifier (reset it, or withdraw consent in the App). You may still contact us at wekstuff@gmail.com and we will help as far as we technically can, and you have the right to complain to your national data protection authority.

If you are in California, we do not sell or share personal information for cross-context behavioural advertising other than through the advertising software described in section 3, which you can switch off using the controls in section 4.

11. Legal bases (GDPR)

• Consent — advertising identifiers and personalised advertising; use of your device location.
• Contract — delivering the App’s features and your Pro entitlement.
• Legitimate interests — keeping the App working, preventing ad fraud, and diagnosing crashes.

12. Children

The App is not directed to children and is not intended for use by anyone under 13 (or the equivalent age in your country). It is not configured as a child-directed service for advertising purposes. We do not knowingly collect data from children; if you believe a child has used the App, contact us and we will assist with the ad-identifier controls available.

13. International transfers

The ad networks, store operators, map and weather providers named above operate globally and may process data in countries outside your own, including the United States. Where required, those transfers rely on the standard contractual clauses or other transfer mechanisms adopted by those companies.

14. Security

Network requests use HTTPS. Secrets are stored in the platform Keychain/Keystore. Because the App keeps your content on your device and we run no user server, the security of your plans and reports depends mainly on the security of your device: use a device passcode, keep the operating system updated, and consider enabling the App’s lock.

15. Changes to this policy

If the App’s data practices change — for example if a feature is added that sends data somewhere new — this policy will be updated and the effective date at the top will change. Material changes will also be noted in the App. Continuing to use the App after an update means you accept the revised policy.

16. Contact

Dev_K — wekstuff@gmail.com. Please put “HF Planner privacy” in the subject line so it is not mistaken for spam.