The hay fever diary that stays on your phone.
Say how your day was in ten seconds. Your data stays on your phone.
Nose, eyes, airways and sleep on a four-step scale, plus the medication you took. Nothing is required and everything can wait until later. Pollen, weather and air quality are added for you, so you can discover which pollen you react to — without an account and without your data ever leaving your device.

Why this app
Ten seconds a day
Four scales and your medication. Nothing is required; a missed day can be filled in afterwards.
Private by design
Everything lives in a local database on your device. No account, no cloud, no tracking, nothing shared with third parties.
Pollen added for you
Alder, birch, grass, mugwort, olive and ragweed are recorded with every check-in, together with the weather and air quality.
Honest verdicts
Per pollen type you see risk, no link, or not enough data. Never a promise the app cannot keep.
A report for your doctor
Your days, medication and pollen as a PDF, made on your phone and shared only where you send it.
No ads
No advertising, no nudges, no third-party SDKs.
How it looks



Your data stays yours.
Pollenio keeps everything in a local database on your own phone and has no server. The only thing it fetches is pollen, weather and air quality for your rough location, without any health data and without an identifier.
Privacy policy