Skyvo

Privacy Policy

Last updated: August 26, 2026

Skyvo helps you understand the sun and the air around you, and it's designed to do that while knowing as little about you as possible. We're not in the data business. We don't want a map of where you go, and we've built the app so that we never need one.

The short version

  • No account required. You can use the app without signing up for anything.
  • To show you conditions, the app sends your coordinates to our own server, with nothing attached that says who you are.
  • Our server rounds your location to a roughly 11 km grid and keeps no history, so it can't tell you apart from your neighbors.
  • Without an account, your saved places, settings, and skin type live only on your phone. Delete the app and it's gone.
  • One optional setting is the exception: server-delivered alerts. It is off unless you turn it on, and while it is on we store the short list described below. Turning it off deletes that immediately.
  • We don't run ads, don't use trackers, and never sell or rent your data.

What the app sends, and why

To show you UV and air-quality conditions, the app sends your device's coordinates toSkyvo's own server. If you search for a city by name, it sends the text you typed. That's the whole list of what reaches our server. No name, no email, no account, and no identifier that ties the request back to you.

Our server passes the request to our weather data provider, fetches the forecast, and returns it. So the path is simply: your coordinates → our server → our data provider.

What our server stores (and doesn't)

Our server is built to forget. Before it fetches anything, it rounds your coordinates to a roughly 11 km grid. It then briefly caches the weather data for that grid cell, not for you, and shares it with everyone else in the area: about an hour for conditions, and a day for city-search results. There's no location history, no profile, and nothing keyed to a person. Because data is stored by area rather than by user, our server genuinely can't tell you apart from anyone else nearby.

The one exception is the optional server-delivered alerts setting described further down. It is off unless you turn it on, and while it is on our server does keep one small record for your installation, so that it knows what to send you and when.

Like nearly every service on the internet, our infrastructure provider creates short-lived technical logs (such as IP addresses) that help keep the service secure and running. We don't use these to identify you, and we don't build profiles from them.

Accounts and what stays on your phone

Skyvo doesn't require an account. If you use the app without one, everything personal stays on your device: your saved locations, your settings and units, your skin type (used to estimate burn times), and cached conditions so you can still see the latest data offline. Your notifications are written on your phone, so we never see what they say. Delete the app and all of this goes with it.

Turning on server-delivered alerts changes the last two of those, and only while it is on: your skin type is sent to our server so it can write the same burn-time line, and the alerts themselves are written there rather than on your phone. The section below lists exactly what that stores.

If we introduce accounts or cross-device sync in the future, they will be optional, and we'll update this policy first to explain what an account stores.

Location permission is also optional. You can decline it and simply add cities by searching for them instead.

Analytics

We may collect anonymous usage statistics, such as the device model, app version, which screens are used, and coarse country, to help us understand what to improve. Nothing in these statistics is tied to your identity, they contain no advertising identifiers, and they are never sold.

Notifications

Notification delivery is handled by Apple's and Google's notification services, the same as in any app.

Server-delivered alerts (optional)

Everything above describes how the app works out of the box: your alerts are written on your phone, and we never see them. One optional setting changes that, and it is off unless you turn it on yourself. You'll find it in the app under Alerts, called "Send from the server".

With it on, your alerts still arrive when the app has been closed or force quit, because our server prepares and sends each one from the newest forecast at the moment it goes out. To do that it has to keep a small record of what to send and where. For as long as the setting is on, that record holds:

  • your location rounded to a roughly 11 km grid, never your exact coordinates
  • the name of that place, as the app shows it to you
  • the times you asked to be alerted, and your time zone
  • your skin type, if you have set one, so a server-written alert can estimate burn time exactly as the app does
  • a notification token for the device, which is what lets Apple and Google deliver to it
  • a random identifier your phone creates for this installation, which is not your name, your email, or any advertising identifier

That is the entire record. We keep no history of the alerts that were sent, and there is still no account, no name and no email anywhere in it.

Turning the setting off deletes the record immediately, and the app tells you once the server has confirmed it. If your phone happens to be offline at that moment, the app finishes the deletion the next time you open it. Deleting the app has the same effect shortly afterwards: its notification token stops working, our server sees that the next time it tries to send, and removes the record then.

Purchases

The app offers optional paid features and subscriptions. Purchases are handled by the Apple App Store or Google Play, and we never see your payment card details. To unlock what you've paid for, we may use a purchase-management service that receives anonymized transaction information (such as a receipt to validate).

The website

Our website (skyvo.app) sets no cookies and uses no analytics or trackers. The same kind of standard technical logs described above apply to it.

Children

Skyvo isn't directed at children under 13, and we don't knowingly collect personal information from them. Since the app doesn't collect personal information on our servers to begin with, there is very little to collect from anyone.

Your rights and choices

Because we don't keep personal data about you on our servers, there's usually nothing for us to look up or delete. Deleting the app removes your data directly. If you have server-delivered alerts switched on, switching them off deletes the record we hold for you straight away, and you can also ask us to remove it. If you're in the EU or EEA, you have rights under the GDPR, such as access, correction, and erasure. You can exercise those rights, or ask us anything about privacy, by emailing [email protected].

Changes to this policy

If we change how the app handles your information, we'll post the updated policy here with a new date. Meaningful changes will be reflected here before they take effect.

Contact

Questions about privacy? Email us at [email protected].