Zasder ☾

Privacy Policy

Last updated: June 3, 2026

This policy covers the following apps published by Zasder Studios: Large Video Cleaner, Sideways Photo Fixer, Simple Shape Game, and Zasder Weather (collectively, "the Apps"). Your privacy is important to us, and every app we build follows a simple principle: your data stays under your control — either entirely on your device, or on a backend you operate yourself.

Information We Collect

We do not collect, store, transmit, or share personally identifiable information about you. For Large Video Cleaner, Sideways Photo Fixer, and Simple Shape Game, no data ever leaves your device. For Zasder Weather, see the dedicated section below — your weather data flows only to a backend you deploy, and Zasder Studios processes only an opaque Apple-issued push token, and only if you explicitly enable background push.

Photo Library Access

Some of our Apps request access to your photo library solely to perform their core functions:

• Large Video Cleaner — displays and manages your videos so you can review and clean up large files.
• Sideways Photo Fixer — accesses your photos to detect and correct orientation issues.

Your photos and videos are never copied, uploaded, or sent anywhere. All processing happens locally on your device.

Simple Shape Game does not access your photo library or any other personal data. It is a self-contained game that runs entirely on your device.

Data Storage

The Apps may store a small amount of data locally on your device using standard iOS storage:

• Identifiers for items you have already reviewed or acted on.
• Your preferences and settings.

This data never leaves your device and is automatically removed if you delete the App.

Analytics and Tracking

Our Apps do not include any analytics frameworks, crash reporting tools, advertising SDKs, or tracking mechanisms. We do not track your usage in any way.

Third-Party Services

Large Video Cleaner, Sideways Photo Fixer, and Simple Shape Game do not connect to any third-party services, APIs, or servers, and do not require an internet connection to function. Zasder Weather, as a client for personal weather stations, contacts only the backend URL you configure yourself — and, optionally, Zasder Studios' push-notification relay if you enable background push (see the Zasder Weather section below).

Zasder Weather (Specifically)

Zasder Weather is a client for your personal weather station data. It does not store any weather observations on servers operated by Zasder Studios. Instead it talks to a backend you deploy yourself — typically on a small Fly.io machine or a Raspberry Pi on your home network — using the open-source server published at github.com/volneydouglas/zasder-weather-backend. The app:

• Sends your weather observation queries only to the backend URL you set in Settings.
• Stores your backend's bearer authentication token in iOS Keychain, bound to this physical device. The token never leaves the device except in the Authorization header on requests to your own backend.
• Stores display preferences (units, theme, hidden device list, supporter tier) in standard iOS UserDefaults. These never leave the device.
• Includes no analytics, no crash reporting, no advertising SDKs, and no tracking framework of any kind.

Background push notifications (opt-in)

You may optionally enable background push for weather alerts in Settings → Enable background push. If you do, the iOS app performs Apple's App Attest handshake and then makes two network requests beyond your own backend:

• One Apple-signed device attestation sent once to Zasder's hosted push relay at weather.zasder.com. App Attest proves to the relay that the request comes from a genuine, unmodified install of Zasder Weather on a real Apple device. It contains no information about you, your weather data, your location, or your usage.
• Your APNs device token (an opaque per-app/per-device identifier issued by Apple, not derived from any personal data) sent to your own backend via POST /api/push/register. Your backend may then forward alert payloads through Zasder's relay so push reaches your phone when the app is closed.

When an alert is delivered via the relay, the relay sees only the notification's title and body (for example, "Temperature alert", "Yard now 102°F (above 100°F)") and the destination device token. The relay does not see your weather observations, your station's location, the URL of your backend, or any contact information. The relay does not log payload contents beyond ephemeral diagnostic counts (delivered vs. failed) used to enforce per-key rate limits and to detect abuse.

You can disable background push at any time in iOS Settings → Notifications → Zasder Weather → Allow Notifications. If you never enable push, the app does not contact Zasder's relay at all — not once.

In-app purchases (optional tip jar)

Zasder Weather offers optional cosmetic supporter tips via Apple's In-App Purchase. Apple processes the payment; Zasder Studios receives only the product identifier and a verification receipt from Apple. We do not see your name, email address, payment method, billing address, or transaction identifier. No app features are gated behind these purchases — a tip simply awards a colored star and an optional decorative border on the cards.

Children's Privacy

Our Apps do not collect any data from any user, including children. They are safe for use by people of all ages.

Changes to This Policy

If we ever update this privacy policy, the changes will be posted on this page with an updated date. Since our Apps collect no data, we do not anticipate significant changes.

Contact

If you have any questions about this privacy policy, you can contact us at:

Email: volneydouglas@gmail.com