CloudEx Inc. ("we", "us", or "our") operates the "Air & UV Watch" app (the "Service"). This Privacy Policy explains what information we collect, how we use it, and the choices available to you. By using the Service, you agree to the practices described here.
1. Our Core Principle
Air & UV Watch shows forecasts of PM2.5, dust and the UV index for the places you choose. A forecast depends on a location, so the app has to send one to the forecast service. It sends only coordinates rounded to about 5 km. There is no account or sign-up. We do not collect or store:
- Your name, email address, phone number, or contacts
- The names of the places you save
- Your precise location or a history of where you have been
- Your health information or the skin type you choose in the app
2. Location and Forecasts
- Approximate location: If you turn on "Use my location", the app asks for your approximate location (never your precise location) and reads it once while the app is open. It never reads your location in the background. The last position is kept on your device so that alerts and widgets can use it, and it is not included in Android backups.
- What is sent to get a forecast: To download a forecast, the app sends the latitude and longitude of a place, rounded to about 5 km, to the forecast service (Open-Meteo.com, directly or through a server we operate). The place name is not sent. As with any request to a web server, the server receives your device's IP address as part of the connection. The app may also download forecasts in the background about every 3 hours so that alerts and widgets stay up to date, using the same rounded coordinates.
- Searching for a place: Major cities are built into the app. When you search for another place by name, the text you type is passed to the geocoding service on your device (provided by Google when available). To show the name of your current location, the app passes coordinates rounded to about 5 km to the same service.
- Not medical advice or an official warning: Forecasts come from a numerical model on a grid of about 40 km. They are not station measurements or official warnings. Levels and advice in the app are general guides and not medical advice.
3. Information We Collect
3.1 Information Collected Automatically
- Anonymous crash reports: Via Firebase Crashlytics. When the app crashes, we collect the stack trace, device model, OS version, and app version. This does not include personally identifiable information, your places, or your location.
- Purchase information: We use purchase tokens issued by Google Play to verify your one-time "Premium" purchase. We never receive any payment information such as credit card numbers.
- List of our other apps: To show our other apps, the app downloads their names, descriptions, and icons from our content server (static files hosted on Cloudflare Pages). The request contains no personal data from the app. As with any request to a web server, the server receives your device's IP address as part of the connection. The app chooses which apps to show on your device, using your device's language and country. Tapping an app in the list opens its page on Google Play.
3.2 Information Stored Only on Your Device
- Your places: The places you save, with their names and coordinates.
- Sunscreen records: The times you tap that you applied sunscreen, your reapply interval, and the skin type you choose. These are used only to show the timer, the reminders, and the time-to-sunburn guide.
- App settings: Alert thresholds, the hours you spend outside, the PM2.5 scale, and similar settings.
- Downloaded forecasts: Kept in the app's cache so that they can be shown offline. You can delete them in the settings.
- Android backup: If backup is turned on in your device settings, Android may include your saved places and settings in the backup it saves to your own Google account, and may copy them to a new phone when you transfer your data directly. Your last known location is always excluded. This is handled by Android; we have no access to it.
- When you uninstall: Uninstalling the app or clearing its data deletes everything stored in the app's own storage.
3.3 Information We Explicitly Do Not Collect
- Your name, email address, phone number, or contacts (the app has no account or sign-up)
- Your precise location, your location history, or the names of your places
- Your device's advertising ID
- A history of the websites you visit or the contents of your communications
- The contents of your screen or of other apps
3.4 Permissions the App Requests and Their Purposes
- Approximate location (ACCESS_COARSE_LOCATION) — Shows the forecast for where you are. Requested only when you turn on "Use my location", and read only while the app is open. You can use the app without it by choosing a place by name.
- Notifications (POST_NOTIFICATIONS, Android 13+) — Shows the morning summary, alerts before bad hours, sunscreen reminders, the time left until the next reapply, and (Premium) current values in the status bar.
- Run at startup (RECEIVE_BOOT_COMPLETED) — Restores scheduled alerts and background updates after your phone restarts.
- Internet and network state (INTERNET, ACCESS_NETWORK_STATE) — Downloads forecasts, and is used for crash reports, Google Play purchase verification, in-app reviews and in-app updates, downloading the list of our other apps, and showing this privacy policy in the app.
4. How We Use Information
The limited information we collect is used only for the following purposes:
- Providing forecasts, alerts, and widgets
- Verifying your Premium purchase
- Diagnosing and fixing crashes
- Responding to support inquiries
- Complying with applicable laws
5. Third-Party Services
Air & UV Watch uses the following third-party services. Each service has its own privacy policy.
- Open-Meteo.com — provides the forecasts (Copernicus Atmosphere Monitoring Service data); receives rounded coordinates
- Firebase Crashlytics (Google LLC) — anonymous crash diagnostic data
- Google Play Billing (Google LLC) — the one-time Premium purchase; payment is completed on Google Play, and we receive only a purchase token
- Google Play In-App Review and In-App Updates (Google LLC) — let you rate the app and install updates without leaving it; handled by Google Play
- Geocoding service on your device (Google, when available) — finds places by name and shows the name of your current location
- Cloudflare Pages (Cloudflare, Inc.) — hosts the static list of our other apps
We do not sell your data and do not share it with advertising networks.
6. Data Retention
- Crash reports: retained for 90 days, then deleted.
- Your places, sunscreen records, settings, and downloaded forecasts on your device: kept until you delete them, uninstall the app, or clear the app's data.
7. International Data Transfers
We are based in Japan. The infrastructure used for forecasts, crash diagnostics, and hosting the list of our other apps may be located in various countries. When you use the Service, the minimal information described above may be processed outside your country of residence under standard contractual safeguards.
8. Your Rights
Depending on where you reside (e.g., the EEA, UK, California, Japan), you may have the right to request access to, correction of, or deletion of the limited information we hold. You can:
- Delete your places in the app at any time, or uninstall the app or clear its data to erase everything stored on your device
- Turn off "Use my location", or withdraw the location or notification permission in your device settings at any time
- Contact us at the address below to make a request regarding the information we hold
9. Children's Privacy
Air & UV Watch is not directed to children under the age of 13 (or the minimum age applicable in your region). If we inadvertently collect information from such a child, we will delete it promptly upon being contacted.
10. Changes to This Policy
This Privacy Policy may be updated from time to time. The latest version is always published at this URL together with its effective date. We will also notify you within the app of significant changes as appropriate.
11. Contact
For questions about privacy, data requests, or to report concerns, please email us at .
CloudEx Inc. (Japan)
Effective Date: November 1, 2026