This policy explains what Hurricane Calendar collects and why. Hurricane Calendar is made by Aquarius Mobile Studios, operated by EMSO Inc. The short version: nothing that identifies you. There is no account, no ads, no analytics and no tracking, and your settings, saved storms and personal dates are stored only on your device. The optional Plus upgrade is bought through Google Play, which handles the payment. Questions go to support@meetamsai.com.
No account, no sign-in, no ads, no analytics and no tracking tools of any kind.
Your settings, saved storms and personal dates are stored on your device, and only there.
Location is optional: you can type your town or ZIP code, or tap "Use my location" to let the Android app read your approximate location once. Either way it stays on your device. It leaves your device only if you turn on local weather: then your place, rounded to about a kilometer, is sent to the U.S. National Weather Service to get the forecast for it, and to no one else. The app never asks for your contacts, photos, camera or microphone.
Daily reminders are optional and scheduled by your phone itself; no server sends them.
Maps and imagery load from NOAA, NASA and OpenFreeMap; storm photos from Wikimedia Commons and newspaper pages from the Library of Congress; storms active now from GDACS (European Commission and United Nations), unless you turn that off in Settings. Those servers see an ordinary web request, including your IP address, and nothing else from us.
News clips load from YouTube only when you press Play. The app uses YouTube API Services, so the Google Privacy Policy applies to them.
Plus, the optional one-time upgrade, is bought through Google Play. Google handles the payment; we never see your card or payment details.
We don’t sell or share personal information. We don’t collect any to sell.
If you email us, your address is used only to reply.
Who we are
Hurricane Calendar (“the app”) is a history app made by Aquarius Mobile Studios, an independent app studio on Long Island, New York, operated by EMSO Inc. (“we”, “us”). This policy covers the Android app and its web version, and describes how they work today.
Everything you set up in Hurricane Calendar is saved on the device you use (in the Android app’s own storage, or your browser’s local storage for the web version), so the app remembers it next time:
Settings: theme, contrast, motion, units, whether dates show in local time or UTC, the screen the app opens on, and your default ocean.
Saved storms: which storms you saved, when you saved them, and any collection names you create.
Personal dates: dates you add, such as a birthday or an anniversary (the label you type, the month and day, and the year if you choose to add one).
Where you left off: your last ocean, dates and filters, and the date of your last visit, so the app can show what’s new since then.
Free replays: which storms you’ve replayed, so the free version can count its five replays.
Plus: whether Plus is unlocked on this device, so it works offline. Google Play keeps the record of your purchase.
Your place: the town, ZIP code or approximate location you choose for "Storms near you", rounded to about a kilometer, and your birth year if you add it for "in my lifetime".
Daily Track Quiz: today's guesses and your record (games played, solved, streaks).
Reminders: whether daily reminders are on and the time you chose.
What leaves your device
One thing, and only if you choose it: when you turn on local weather, the app sends your place, rounded to about a kilometer (two decimal places of latitude and longitude), to the U.S. National Weather Service (api.weather.gov) to get its current conditions, forecast and alerts for that spot. The National Weather Service receives the place with an ordinary web request and nothing else. With Plus, the home-screen widgets ask the National Weather Service for the forecast about every hour (one request serves both); the request names a forecast office and grid square, not you. Turn local weather off in Settings or on the Weather page and the app stops asking.
The information above is never sent to us or to anyone else. We can’t see it, and there is no copy of it on any server.
The app also reads your device’s time zone so it can show dates in your local time. The time zone is used on your device and never sent.
On Android, if you have turned on your phone’s backup to your Google Account, Android may include the app’s settings, saved storms and personal dates in that backup, so they return when you set up a new phone. That backup is made and kept by Google under your account; we never receive it.
Finding the storms near your place happens on your device, using storm tracks and a list of U.S. towns and ZIP codes (from the U.S. Census Bureau) that are built into the app. Your place is not sent anywhere for this.
What the app loads from the internet
To show the storm archive, maps and imagery, the app downloads public files. None of these requests carries your settings, saved storms or personal dates.
The storm archive (tracks, names, stories, the list of U.S. towns and ZIP codes, and the other data the app displays) is built into the Android app, so showing it downloads nothing. The web version loads the app and its archive from the server that hosts Hurricane Calendar.
Base maps (map tiles, labels, symbols and relief shading) come from OpenFreeMap, drawn from OpenStreetMap and Natural Earth data.
Satellite imagery comes from NASA’s Global Imagery Browse Services (GIBS), for the days of the storm you are viewing.
Ocean depth images come from NOAA’s National Centers for Environmental Information. When you tap the map for a depth, the app asks NOAA’s service for the depth at that spot.
Sea-surface temperature comes from NOAA CoastWatch. The Android app requests it from NOAA directly; the web version requests it through the server that hosts Hurricane Calendar, so NOAA sees that server rather than your device.
News clips play from YouTube, and only after you press Play. Hurricane Calendar uses YouTube API Services: once a clip loads, YouTube (Google) receives the request and may set cookies, as described in the Google Privacy Policy and the YouTube Terms of Service.
Storms active now (the latest reported positions and tracks so far of current tropical cyclones) come from GDACS, the Global Disaster Alert and Coordination System of the European Commission and the United Nations. The app checks it every 15 minutes while it is open; you can turn this off in Settings, and the app then does not contact GDACS.
Local weather, only if you turn it on: current conditions, forecasts and alerts from the National Weather Service, for your place rounded to about a kilometer.
Live radar and satellite (Plus): NOAA's National Weather Service radar mosaic, and images from NOAA's GOES satellites through NASA GIBS, for the area around your place.
Storm news, only if you turn it on: the Android app reads the National Hurricane Center's public list of current storms (and, with Plus, its Tropical Weather Outlooks) about every 30 minutes, including when the app is closed. Nothing about you is sent; the notes are made by your phone.
Google Play is contacted when you open the Plus screen (for its price in your currency), when you buy or restore Plus, and when the app starts or returns to the screen, to check whether your Google account owns Plus. See Payments below.
What those servers see
Like any website, each of these servers receives standard technical information with every request: your IP address, your browser and device type, the time, and the file requested. For maps and imagery, that shows which area and date were being viewed, not who was viewing. NOAA, NASA, OpenFreeMap, GDACS, the National Weather Service, the National Hurricane Center and Google handle this information under their own policies; we don’t receive it from them.
For the web version, the service that hosts Hurricane Calendar may keep logs of these requests for a limited time to deliver the app, keep it secure and fix problems. We don’t use them to identify, profile or follow anyone, and we don’t combine them with any other information.
What we never collect
The app has no account and no sign-in, and it never asks for your name, email address or phone number. It doesn’t access your contacts, photos, camera, microphone or advertising ID, and it asks for none of those permissions. It asks for your approximate location only if you tap "Use my location", and only for that moment; it never asks for precise or background location.
There are no ads, no analytics, no crash-reporting services, no social-media trackers and no cookies of our own. We don’t sell, rent or share personal information, and we don’t use it for advertising.
Sharing, reminders and links
When you share a storm, your device’s own share sheet or clipboard handles it. We don’t see what you share or who you share it with.
Anniversary reminders are calendar files (.ics) created on your device and handed to the calendar or other app you choose, through your device’s share sheet. We never receive them.
Daily history reminders are off unless you turn them on in Settings. When they are on, the Android app asks for permission to show notifications and schedules the next two weeks of reminders on your phone. They are history only, never warnings or alerts, and no server sends them.
When you share a Daily Track Quiz result, only the quiz number and your result squares are shared, never your record or the answer.
Links to the official forecast centers and to sources open those organizations’ own websites, which have their own privacy policies.
When you contact us
“Report a suspected error” on a storm’s page opens your email app with a new message to support@meetamsai.com that names the storm and the archive version. Nothing is sent unless you press send, and you can change the message first.
When you email us, we receive your email address and whatever you write. We use them only to reply and to correct the storm data, we never add you to a mailing list, and you can ask us to delete your messages at any time. Our email runs on Google Workspace.
Payments
Hurricane Calendar is free to use. Plus is an optional one-time purchase that unlocks unlimited searches and replays and the extra map layers. It is not a subscription.
Plus is sold through Google Play. Google processes the payment under the Google Play Terms of Service and the Google Privacy Policy. We never receive your card number, billing address or other payment details, and we don’t run any server of our own for purchases.
To unlock Plus, the app asks Google Play on your device whether your Google account owns it, and confirms (acknowledges) the purchase to Google, as Google requires. Google shares with us, as the seller, the standard order information it gives every Play developer, such as the order number, date, price and country. We use it only for accounting, refunds and support, and never to identify or contact you.
Refunds are handled by Google Play under its refund policies. If a purchase is refunded, Plus locks again.
Children
Hurricane Calendar is a general-audience history app and isn’t directed to children under 13. It doesn’t collect personal information from anyone, children included. If you believe a child under 13 has emailed us, contact us and we’ll delete the message.
Your choices
You control everything the app stores, without asking anyone:
Export your data: Settings → Privacy & data → Export my data saves your settings, personal dates and saved storms to a file.
Delete your data: Settings → Privacy & data → Delete all data on this device erases everything the app has stored. Uninstalling the Android app, or clearing its storage in your phone’s settings, does the same; for the web version, clearing your browser’s data for the app does. Your Plus purchase stays with your Google account: use Settings → Restore purchase to unlock it again.
Forget your place: Settings → My place → Forget my place removes it. You can also turn off location access for the app in your phone's settings at any time.
Turn off reminders: Settings → Reminders, or your phone's notification settings.
Delete your emails: write to support@meetamsai.com and we’ll delete our correspondence with you.
Your privacy rights
Depending on where you live (for example under the GDPR in the European Union and the United Kingdom, or under California law), you have rights to access, correct, delete and move your personal information, and to object to how it is used. The app keeps your information on your device, so you can exercise those rights there yourself.
The only personal information we hold is email you send us, which we use to answer you. Contact us about it and we’ll respond within 30 days. We don’t sell or share personal information, and the app doesn’t track you, so there is nothing to opt out of.
Security
Every connection the app makes over the internet uses HTTPS. Inside the Android app, the screens are served to the app by a small web server that runs on your phone, listens only to the phone itself and can’t be reached from any other device.
Data on your device is protected by your device (and, for the web version, your browser); anyone who can use your unlocked device can open the app and see your saved storms and personal dates.
Changes to this policy
If the app changes what it stores or sends, we’ll update this policy before the change takes effect and revise the date at the top of this page.
Contact
Aquarius Mobile Studios, operated by EMSO Inc. · Long Island, New York, United States