Personal hayfever intelligence
Live your season.
Help end it for good.
Not another pollen counter. An honest 5-day forecast for your area — and a season that learns you behind it.
The problem
400 million people lose weeks of their lives every year — to fog, exhaustion, cancelled plans and quiet misery — from a condition that existing tools barely address.
Generic forecasts
Regional pollen counts tell you what's happening in your county — not your street, your commute or your park. They're averages over large areas that mean nothing to your specific exposure.
Reactive management
Antihistamines taken after symptoms arrive. Steroid injections each spring. A cycle of reaction, not prevention. The tools most people have were designed to manage symptoms, not eliminate them.
Lost weeks
Brain fog, poor sleep, reduced productivity, cancelled plans. For moderate-to-severe sufferers, hayfever season means weeks of diminished quality of life — and that is considered normal.
We believe
Hayfever is not a minor inconvenience. It's weeks of fog, missed mornings and lost plans — and the tools most people have were built to cope with it, not to end it. Your season is yours. It's time to take it back.
The Haelo system
A hayfever companion
that knows you.
An honest forecast at the front door. The patterns of your season, and today's action, behind it.
Forecast
An honest forecast
Five days, per species — birch, alder, grass, mugwort. Hourly for tomorrow. A district accuracy badge fed by community ratings. Source-transparent: CAMS Copernicus, Ambee and OpenWeatherMap named inline. We stop where the evidence stops.
Understand
Your patterns
Daily symptom logs, Apple Health signals (sleep, HRV, respiratory rate) and the personal pollen threshold the app learns from a few weeks of your data — the level at which your symptoms reliably start.
Act
Today's advice
A 30-rule engine turns continuously refreshed research into actions you can take now — medication timing, pre-season prep, thunderstorm asthma warnings, rain-window opportunities. Personal to your profile, every time.
Who it's for
For people ready to stop coping.
“I know my sleep data to the minute. But I have no idea why Tuesdays are always worse for me.”
— Suki, 34
The early adopter
“Just tell me what to take, when to take it, and why it works. I don't need a wellness app.”
— Marcus, 41
The pragmatist
“The evidence on quercetin pre-loading is actually decent. Why isn't any app helping me do this?”
— Priya, 28
The informed advocate
The season arc
Haelo works across
your entire season.
Pre-season
Jan – Feb
Prepare your body and plan before the pollen arrives.
- → Set your prep checklist
- → Pre-load medication
- → Book an allergy blood test
- → Review last year's logs
Peak season
Mar – Jul
Track exposure for your area, log how you feel, manage symptoms with precision.
- → 5-day forecast for your postcode
- → Daily symptom log
- → Medication timing
- → Personalised daily advice
Post-season
Aug – Dec
Learn from this season to make next season materially better.
- → Season review
- → What worked analysis
- → Profile refinement
- → Research digest
The app
A quiet companion,
in your pocket.
No dashboards. No data dumps. Just what you need, when you need it — today's forecast, tomorrow's risk, and what to do about both.
Today
Your 5-day forecast — per species, hourly tomorrow, district-rated.
Insights
The patterns of your season — surfaced as the app learns you.
Plan
Today's advice — backed by live research, personal to your profile.
The research engine
Science that actually
reaches you.
Most hayfever research sits in journals. Haelo's engine continuously searches the academic literature, grades the evidence, and translates findings into daily actions — personalised to you.
177
Research questions across 26 domains
30
Rule intelligence engine
Continuous
Evidence refresh
Academic queries
AI-driven search across the academic literature — 177 structured questions covering 26 domains of allergic rhinitis research.
Synthesis
Cross-question synthesis finds patterns across domains. Gap analysis flags weak evidence. Every finding graded for confidence.
Translation
Research converted to IF/THEN app logic, brand-voiced articles and practical daily actions — in plain language, with citations.
Personalisation
Recommendations filtered through your profile, biomarkers, learned threshold and current exposure level. Generic advice never reaches you.
Early access
Start your
season today.
Haelo is live on the App Store. Or join the mailing list for season updates, evidence-graded research, and what we ship next.
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