Privacy Policy

Last updated 2026-08-15

Limited technical data

The app does not require an account and does not automatically collect your name, email address, or other directly identifying information. The app has no ads and uses no cookies. If you enable notifications, however, a technical identifier for the app on your device is processed as described in the Notifications section below. If you contact us by email, the information in your message is processed as described under Your rights and contact.

Pollen data

When the app downloads pollen data, forecasts and history for all of Sweden are fetched at once. Which region you are viewing and which pollen types you see are selected locally and are not sent to the app's server or PostHog. The selected region's fixed coordinates may, however, be sent to Apple for the weather feature as described under Apple services.

The requests to the app's server contain only technical information about what is being fetched. Your selected region, allergens, and notification settings are not included and are not stored by the server.

Server traffic and logs

When the app contacts the Pollen server, Cloudflare receives your IP address to route and protect the traffic. Cloudflare's short-lived operational logs may contain the time, request method, full URL, request country, and technical outcome. The logs are used for operations, security, and debugging, are kept for no more than seven days, and are not covered by the database's EU jurisdiction restriction.

Location

If you choose to use your location, it is used on your device to find the nearest pollen station. The app only ever requests approximate location from iOS, never your precise location; if you want to share your precise location, that is your own choice to turn on in iOS Settings, the app does not ask for it. Your location is never sent to the app's server, is never stored by us, and is never part of the analytics data. To show which locality you are in, your coordinates are sent to Apple's location service, which returns a place name and country. See Apple services below.

Apple services

The app uses several of Apple's services, each of which receives data from your device. Apple's processing is covered by Apple's own privacy policy.

• Weather: The selected region's fixed coordinates, not your exact location, are sent to Apple's WeatherKit service to fetch the weather forecast.
• Place search: When you search for a place, what you type is sent to Apple's search service to produce suggestions. When you pick a suggestion, its coordinates are retrieved from there.
• Maps: The map view fetches map data from Apple for the area you are viewing.
• Place name for your location: If you use your location, your coordinates are sent to Apple to be translated into a place name.
• Notifications: Apple delivers the background notifications described under Notifications below.
• iCloud sync: If you are signed into iCloud, your allergy selections and saved locations carry over to your other devices. See iCloud sync below.

iCloud sync

If you are signed into iCloud on your device, the app keeps your selected allergens and saved locations in step across your devices, using Apple's iCloud. This means that if you set up the app on one device and then open it on another device signed into the same iCloud account, that device inherits these settings instead of asking you to choose them again. Notification settings stay local to each device and are never synced.

This data is stored by Apple as part of your iCloud account, not on the app's own server, and is not included in the analytics data described below. It is covered by Apple's own privacy policy, not ours. You can turn iCloud sync off at any time in iOS Settings, either by disabling iCloud entirely or, if listed there, by turning it off for this app specifically under Apps Using iCloud. From there, you can also delete the app's iCloud data entirely.

Analytics

We use the analytics service PostHog (provider: PostHog, Inc.) to analyze usage data. The app sends data to PostHog's EU instance, where it is stored within the EU.

What data is transferred?

The data processed by PostHog is pseudonymized and is not linked to your name, contact details, or an account.

The data collected includes:

• a random installation ID
• actions such as "app opened", "notification mode changed", "background notification received", or "forecast/history refreshed"
• device metadata (e.g., system version, app version, device type)
• the country in which the device is located, derived from the IP address when the event is received (country only, never city, region, or coordinates)
• additional non-identifying metadata such as whether a refresh succeeded or which feature (map, history, season progress, settings) was opened
• crash reports: If the app crashes, technical error information (the type of error, an error code, and a stack trace, meaning the location in the code where the error occurred) is stored on your device and sent the next time you open the app, so that the fault can be identified and fixed.

What is not stored?

• No IP addresses: Your IP address is used at the moment of receipt to determine which country you are in and is then discarded. It is stored neither in logs nor in the database.
• No cookies, session recording, or tracking across apps or services
• No names, contact details, accounts, or advertising identifiers
• The APNs token is never sent to PostHog
• No coordinates, saved location names, or search text are sent to PostHog

Notifications

If you enable notifications, the app registers with Apple Push Notification service (APNs). The app then sends an APNs token that is unique to the app on your device, together with the app's operating environment, to the Pollen server. The server runs on Cloudflare and stores the token, operating environment, and timestamps recording when the token was created and last registered. The data is stored in a database restricted to the EU, so the storage itself takes place within the EU. The request may, however, travel through one of Cloudflare's servers outside the EU, depending on where you are when the app registers.

When a new pollen forecast is published, the server sends the same content-free background notification to every registered device through APNs. The notification contains only a signal telling the app to check for an update. It contains no region, location, allergen, threshold, notification time, or visible notification text. The app downloads the forecast and creates any visible notifications locally on your device.

The token is used only for this purpose and is not linked to an account or your settings. When you turn notifications off, the app sends a deletion request and the token is removed immediately if that request succeeds. It is also deleted when Apple reports that it is no longer valid. If the deletion request cannot reach the server, the token may remain until Apple marks it as invalid.

Purposes and legal bases

The APNs token is processed with your consent to provide the notification feature you have chosen to enable. You can withdraw your consent at any time by turning notifications off in the app. Analytics data is processed on the basis of our legitimate interest in understanding how the app is used, detecting errors, and improving its functionality and reliability.

Technical server data and operational logs are processed on the basis of our legitimate interest in operating, protecting, and debugging the service. Weather, maps, and place search are used to provide features you request, on the basis of our legitimate interest in offering them. Processing of your exact location is based on your consent, which you can withdraw in iOS Settings. iCloud sync of your allergy selections and saved locations is likewise based on your consent, expressed by keeping iCloud enabled for the app, which you can withdraw at any time in iOS Settings. Support emails are processed on the basis of our legitimate interest in responding to your request and troubleshooting the issue.

Service providers

Cloudflare processes technical data to operate the app's server and store server data. Apple processes the APNs token and background notifications to deliver notifications. Apple also processes the weather, map, and location requests described under Apple services, the iCloud sync data described above, as well as support emails in our iCloud Mail inbox. PostHog processes the analytics data described above. We do not use any of this data for advertising or to track you across apps or services.

Transfers outside the EU

PostHog, Inc. and Cloudflare, Inc. are US companies that process data on our behalf as processors. The analytics data is stored on PostHog's EU instance and the APNs token in an EU-locked database at Cloudflare, but the data may still be accessible from the US, for example during support and operations. Such transfers take place under the European Commission's Standard Contractual Clauses, which form part of our data processing agreements with each provider. You can request a copy of the clauses at [email protected].

Apple is not our processor. When the app fetches weather, map data, or place names, your device communicates directly with Apple, which processes the data as an independent controller under its own privacy policy. The same applies to notification delivery through APNs, iCloud sync, and the handling of support emails in iCloud Mail.

How long is data kept?

Analytics data is kept for 36 months and deleted thereafter. Pollen is seasonal, and three seasons are needed to compare usage year over year. Aggregated statistics that cannot be connected to an individual device, such as the number of app opens per month, may be kept longer because they contain no personal data.

Cloudflare's operational logs are kept for no more than seven days. Support emails are kept for as long as needed to handle the request and thereafter only if needed for follow-up or legal claims.

The APNs token has no fixed retention period; it is kept for as long as you use the feature. When you turn notifications off, the app requests its deletion. If the request fails, the token may remain until Apple reports that it is no longer valid.

Your notification settings are stored only on your device and disappear when you delete the app. Your allergy selections and saved locations are likewise stored on your device and disappear when you delete the app; if iCloud sync is enabled, they also remain in your iCloud account, governed by Apple's own retention rules, until you turn off iCloud sync for the app or delete the app from all your devices.

Settings

Your allergy settings and saved locations are stored locally on your device and, if you are signed into iCloud, are synced across your devices via Apple's iCloud as described under iCloud sync above. Information about your allergies is health data; it is never sent to the app's own server and never included in the analytics data. Neither the server nor the analytics data contains information about which pollen types you have selected. The analytics data shows only how many you selected, never which ones.

Your rights and contact

If you contact us, we process your email address, your message, and any attached technical information about the app to respond to your request and troubleshoot the issue. The processing is based on legitimate interest, and the data is kept only for as long as needed for the request, follow-up, or legal claims.

Måns Jäderlund is the controller responsible for the processing described in this policy. Contact [email protected] if you have questions or wish to request access, correction, or deletion, receive the data in a machine-readable format in order to move it, restrict processing, or object to it. You also have the right to lodge a complaint with the Swedish Authority for Privacy Protection (IMY).

The analytics data, however, cannot be connected to you. It contains no account and no identifier that we can link to a person, which means we cannot retrieve, correct, or delete data relating specifically to you on request (Article 11 of the GDPR). For that reason, please do not send us further information about yourself to make such identification possible. It would give us more information about you, not less.

The easiest way to delete your APNs token is to turn notifications off in the app. If the deletion request succeeds, it is removed immediately; otherwise, it may remain until Apple reports that it is no longer valid.