週間天気予報 Sunny vs O2Quality
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
週間天気予報 Sunny
This weather app provides essential daily weather and pollen forecasts on a single screen. It offers high visibility, detailed pollen information, and supports various planning needs from daily outfits to leisure activities. It's designed for ease of use and comprehensive weather insights.
- Single-screen weather and pollen forecast
- Detailed pollen dispersion status
- Daily outfit and leisure planning support
- Location-based area setting
- High visibility design
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Condense the information you want to know onto one screen. "Weekly Weather Forecast Sunny" is a weather app that allows you to smartly check daily essential weather and pollen forecasts on a single screen. Based on the latest data, it accurately captures changes in weather. No complex operations are required; simply set your area using location information for easy use. [3 Points Why Sunny is Chosen] High visibility completed on one screen: We adopted a design that allows you to see the weekly weather, pollen information, and weather overview at a glance. There is no need to switch screens multiple times. You can quickly check the temperature and weather, making it perfect for your busy morning routine. Thorough hay fever countermeasure functions: For those who want to "check pollen first," you can display pollen information at the top of the settings. By selecting "details" from the list, you can view the pollen dispersion status in detail, supporting thorough daily pollen countermeasures. From choosing daily outfits to planning leisure activities where fishing weather is a concern, it provides weather information that can be widely utilized, from business travel. [Recommended for these people] Those who are concerned about pollen dispersal and want to take thorough measures before going out. Those who want a free weather forecast app that balances ease of use and information richness. Those who want to simply view specialized weather (whether) information. This is the definitive app for those who want to value both weather and pollen. Please take advantage of "Weekly Weather Forecast Sunny" to support your comfortable daily life! Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://nilcraft.jp/privacy_policy
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。
Screenshots
Verdict
The clearest difference is review sentiment: O2Quality at 100% against 週間天気予報 Sunny's 33%. O2Quality also leads on in-app purchases (none vs 2) and ads (none vs shown). 週間天気予報 Sunny's advantage is iOS requirement (17.0 vs 27.0). On price, 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. 週間天気予報 Sunny sells 2 in-app purchases, starting at $8.99 per 7 days. O2Quality asks for nothing beyond the download.
週間天気予報 Sunny ships an update every 3 months, O2Quality every 4 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.
| Parameter | 週間天気予報 Sunny | O2Quality |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (1 ratings) — better | — |
| Positive reviews | 33.3% of reviews | 100.0% of reviews — better |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 months — better | Every 4 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad | iPhone, iPad, Mac — better |
| Requires iOS | 17.0 — better | 27.0 |
| Further details — not scored | ||
| Size | 98 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | NilCraft Inc. | Tomohiko Shimizu |
Customer experience
週間天気予報 Sunny
O2Quality
In-app purchases
週間天気予報 Sunny
- Sunny プレミアム(1週間)7 Days trial$8.997 Days
- Sunny プレミアム(1か月)7 Days trial$31.991 Month
O2Quality
No in-app purchases
Questions
Is 週間天気予報 Sunny free?
Is O2Quality free?
Do 週間天気予報 Sunny or O2Quality have ads?
Which is updated more often, 週間天気予報 Sunny or O2Quality?
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