O2Quality vs The Pollen Forecast Checker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
O2Quality
Provides real-time air quality information based on US and European Air Quality Index (AQI) standards. It forecasts pollutant levels for up to five days, including carbon monoxide, ozone, nitrogen dioxide, sulfur dioxide, PM2.5, and PM10.
- Real-time AQI reporting
- US and European AQI standards
- Forecasts for 6 pollutants
- 5-day pollutant forecasts
- Color-coded risk levels
- Pollutant concentration data
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O2Qualityは、いまいる場所の大気汚染の状況を、いまいる場所の大気汚染の状況を、米国大気質指数と欧州大気質指数が定める空気質指数(AQI)と、お近くにある観測地点の一酸化炭素など6種類の予報をお伝えするアプリです。 ※ O2QualityはWeather data by Open-Meteo.comのデータを利用しています。All data is provided as is without any warranty. ※ 日本国内では、いまいる場所の最寄りに大気汚染を測定する装置が必要十分な数だけ設置されていないエリアがあると考えられます。 [ 空気質指数(AQI)を分かりやすくにお伝えします ] 米国大気質指数と欧州大気質指数が定める10段階の空気質指数(AQI)を、危険度の段階を表す数字と概要、そして危険度を表す色でお伝えします。 [ 6種類の汚染物質の指数をお伝えします ] 一酸化炭素(Carbon Monoxide)、オゾン(Ozone)、二酸化窒素(Nitrogen dioxide)、二酸化硫黄(Sulphur dioxide)、PM2.5、PM10といった汚染物質を対象に、およそ5日間の予報値をお伝えします。 [ 6種類の汚染物質の濃度をお伝えします ] 一酸化炭素(Carbon Monoxide)、オゾン(Ozone)、二酸化窒素(Nitrogen dioxide)、二酸化硫黄(Sulphur dioxide)、PM2.5、PM10といった汚染物質を対象に、およそ5日間の予報値をお伝えします。
The Pollen Forecast Checker
This app provides a clear and simple forecast of airborne pollen types and their quantities. It helps users with allergies take proactive measures to manage symptoms by displaying current and future pollen levels.
- Current pollen information by location
- Pollen types and quantities displayed
- 5-day pollen forecast
- Visual indicators for pollen levels
- Simple and clutter-free UI
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The Pollen Forecast Checker is a simple yet high-quality Japanese-made app designed for people with pollen allergies. It clearly displays which types of pollen—such as cedar, cypress, or grass—are currently in the air and in what quantities. By checking the pollen levels before going out, the app helps you take proactive steps to reduce allergy symptoms. Features - Clear display of today's pollen information for your current location or selected area - Check the pollen levels by type (cedar, cypress, grass, etc.) - 5-day pollen forecast, including today, to help you plan ahead - Visual indicators such as “Very High,” “Moderate,” and “Low” make it easy to understand at a glance - Simple UI that immediately shows the necessary information when the app is opened Recommended For - Those who suffer from hay fever every year - People who want to prepare masks or glasses before going out - Parents looking to protect their young children from pollen - Commuters and students who want quick access to pollen info on their phone - Anyone who finds other pollen apps too cluttered or complex Usage Scenarios - Check pollen levels quickly while getting ready in the morning - Refer to the forecast when planning weekend activities - Check pollen status at your destination and prepare masks or medicine - Convenient for those who want to use over-the-counter medication only on severe days The Pollen Forecast Checker is designed to help you manage pollen allergies naturally in your daily life. No unnecessary features—just the essential information delivered smartly. If you're looking for a simple and reliable pollen app, give this one a try. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: O2Quality at none against The Pollen Forecast Checker's 2. O2Quality also leads on ads (none vs shown). The Pollen Forecast Checker's advantage is iOS requirement (15.6 vs 27.0). On price, review sentiment, update cadence and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. The Pollen Forecast Checker sells 2 in-app purchases, starting at $3.99 per month. O2Quality asks for nothing beyond the download.
Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on November 3, 2026 and November 8, 2026 respectively.
| Parameter | O2Quality | The Pollen Forecast Checker |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.5 (4 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | — | 4 — better |
| Update frequency | Every 4 months | Every 4 months |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod, Apple Watch — better |
| Requires iOS | 27.0 | 15.6 — better |
| Further details — not scored | ||
| Size | 11 MB | 67 MB |
| Age rating | 4+ | 4+ |
| Developer | Tomohiko Shimizu | Vida Apps Incorporated |
Customer experience
O2Quality
The Pollen Forecast Checker
In-app purchases
O2Quality
No in-app purchases
The Pollen Forecast Checker
- Premium Plan - 1 Month$3.991 Month
- Premium Plan - 3 Month$9.993 Months
Questions
Is O2Quality free?
Is The Pollen Forecast Checker free?
Do O2Quality or The Pollen Forecast Checker have ads?
Which is updated more often, O2Quality or The Pollen Forecast Checker?
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