Haelo — Hayfever Intelligence

Live your season. Help end it for good. Haelo is the UK hayfever app that learns your season — turning daily logs, local pollen, and your own body's signals into a personal map of what makes you worse and what actually helps.

Plan your week before it hits you - The new Plan tab gives you a 5-day forecast personalised to your triggers, not a generic regional average. See exactly which days will be hard, an hour-by-hour chart for tomorrow, the species driving the count (alder, birch, grass, mugwort), and a clear thunderstorm callout when conditions could rupture pollen grains. Look up any UK postcode — useful before you travel, visit family, or plan an event. Insights that get sharper with every log - The new Insights tab is where Haelo's pattern detection lives. See your exposure mapped against your symptoms over 7 days, 30 days, or the whole season. Find out which lifestyle factors — sleep, HRV, alcohol, outdoor exercise — track with worse days for you specifically. Read your season at a glance with the new arc bar showing where you are in the curve.

What's Free: • Live pollen ring + 5-day forecast for your location • Daily symptom log with context tags • Daily habits and same-day actions • Tip of the day and the full Daily Did You Know rail • Community pulse from other UK users • Weather context, best-day banner, medication check-in

What's premium: • Personal risk prediction — your model, learned from your logs • Hourly forecast for tomorrow + personal pollen thresholds • Symptom correlations across HealthKit data • The full 173-packet evidence library, sorted by topic and evidence tier • Full Article and Deep Dive depths on every article • Season review, GP visit prep sheet, food cross-reactivity guide • Audio narration on articles • 7-day free trial. £4.99/month, £29.99/year, or £79.99 lifetime.

Also in Haelo • Apple Watch app with morning briefing, quick log, and a one-tap "going outside?" check • Widgets and Lock Screen complications • Siri shortcuts for fast logging • Sign in with Apple, end-to-end account deletion, full GDPR data export

Evidence led, not guesswork - Every recommendation in Haelo is tagged with an evidence tier so you can see how strong the science actually is. Forecasts use CAMS Copernicus data with a district-level accuracy badge — we tell you when the forecast for your area has been reliable, and when it hasn't.

Built in the UK for UK hayfever sufferers. Privacy-first: your data stays yours.