Respira
Respira vs Allergy Plus by Pollen.com
Both are free iPhone apps for tracking pollen. They are built around different ideas, and which one suits you depends on what you actually want out of it. Everything below is taken from each app's own App Store listing, checked on 2026-09-03.
What each one is
Allergy Plus by Pollen.com (IQVIA Inc.) — The app of Pollen.com, a US allergy-forecasting site that has been running for around two decades. It is the most established name in this list for pollen specifically, and its US forecast history is longer than anyone else's here. 4.8 from about 22,900 ratings (US App Store, 2026-09-03).
Respira — a pollen and air-quality app for twelve countries, with per-species allergen tracking, a symptom diary you can export, and Home and Lock Screen widgets. 4.9 from 14 ratings (Spanish App Store); not yet rated in the US.
Side by side
| Feature | Respira | Allergy Plus |
|---|---|---|
| Countries covered | Yes Twelve: the United States, Australia, New Zealand, Argentina, Chile, Spain, Portugal, France, Italy, Germany, Ireland and the United Kingdom |
No Its listing states it is "currently for use in the continental US only" |
| US pollen species named | Yes Eleven species, from the Google Pollen API |
Not stated Describes "in-depth information on impactful allergens in your area" without naming a species count |
| Air quality | Yes AQI plus PM2.5, PM10 and ozone, on the EPA scale in the US and the European index elsewhere |
Yes Air quality forecasts alongside allergy and weather |
| Symptom diary | Yes Symptoms, severity, medication and notes, with a monthly calendar |
Not stated Not mentioned in its listing |
| Personal symptom prediction | No Respira reports measured and forecast pollen. It does not predict how you personally will feel |
Not stated Not mentioned in its listing |
| Home and Lock Screen widgets | Yes Home Screen and Lock Screen |
Not stated Not mentioned in its listing |
| Exportable report for a clinician | Yes PDF export of the diary (Pro) |
Not stated Not mentioned in its listing |
| Destination / travel forecast | Yes Destination forecast and pre-trip alerts (Pro) |
No Follows from the continental-US-only limitation it states |
| Multiple saved locations | Yes Saved locations, synced across devices |
Yes Forecasts and notifications across multiple locations |
| Established US user base | No Launched in the US in August 2026. No US ratings yet |
Yes About 22,900 US ratings |
“Not stated” means the app's own listing does not mention it. It is not a claim that the feature is missing — only that we found no source saying it is there, and we would rather say so than guess.
Which one should you use
If you are in the continental US, never travel outside it, and want a pollen forecast from the longest-running US source with a large, settled user base, Allergy Plus is the safer pick. Respira is the better fit if you want a symptom diary you can hand to an allergist, widgets, or coverage that follows you abroad.
The honest summary: Allergy Plus has a far larger US user base than Respira, which launched in the United States in August 2026 and has no US ratings yet. If a long track record is what reassures you, that is a real point in its favour, and no feature table changes it.
Try Respira
Free on the App Store. Eleven pollen species in the United States, air quality on the EPA scale, and a symptom diary you can export as a PDF for your allergist.
Other comparisons
Respira is an informational tool. It does not replace diagnosis or advice from a medical professional. Competitor details are taken from their public App Store listings on 2026-09-03 and may have changed since.