OpenWindow vs OpenAir
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OpenWindow
This app provides clear, practical recommendations on whether to open windows or go outside based on local weather and air quality. It simplifies complex data into easy-to-understand guidance for everyday decisions.
- Window opening recommendations
- Outdoor activity guidance
- Hourly weather outlooks
- Air quality data integration
- Current and manual location search
- Customizable units
- Light and dark mode
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OpenWindow helps you decide when the air outside is worth letting in. Check whether it is a good time to open your windows or go outside using local weather and air-quality conditions. OpenWindow combines temperature, humidity, precipitation, wind, visibility, UV, and air-quality data into clear, practical recommendations. Instead of making you interpret every weather metric yourself, OpenWindow gives you simple guidance for two everyday questions: - Is it a good time to open the windows? - Is it a good time to go outside? Features: - Current recommendations for windows and outdoor activity - Hourly outlooks so you can plan around better conditions - Weather and air-quality data powered by Open-Meteo - Current-location lookup with optional location permission - Manual location search if you prefer not to use device location - Saved default location for quick checks - Unit preferences for temperature, wind, visibility, and more - Light and dark mode support - No account required OpenWindow is built for quick, low-friction decisions: checking the room before opening a window, planning a walk, timing errands, or seeing whether air quality makes staying inside the better call. Location access is optional and used only to fetch local weather and air-quality data. You can always search for a location manually instead.
OpenAir
This app helps you decide the optimal time to open your windows for fresh air. It compares indoor comfort with outdoor weather conditions like temperature, dew point, humidity, rain, and wind to provide simple recommendations.
- Window opening recommendations
- Indoor vs. outdoor condition comparison
- Humidity and dew point monitoring
- Rain and wind alerts
- Simple open/close guidance
- Fresh air optimization
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OpenAir helps you decide when to open or close your windows using outdoor weather and your comfort settings. It checks outdoor temperature, dew point, rain, and wind, then gives you a clear recommendation. Explore up to 10 days of hourly temperature and dew point charts, with your comfort limits and window guidance shown alongside them. Use OpenAir to: * See a simple open or close recommendation * Find upcoming periods when outdoor conditions suit your preferences * Check temperature and dew point trends before opening your windows * Avoid rain, strong wind, and humid outdoor air * Get alerts when the recommendation changes * Check your status with iPhone widgets and Apple Watch Set your preferred outdoor temperature range, maximum dew point, and wind limits to tailor the guidance. OpenAir uses outdoor conditions only. It does not measure indoor temperature, indoor humidity, or air quality. Alerts and background updates are best-effort and may be delayed by iOS.
Screenshots
Verdict
The clearest difference is in-app purchases: OpenWindow at none against OpenAir's 3. OpenWindow also leads on rating (5.0 vs 4.7). OpenAir's advantage is ratings volume (6 vs 1). On price, update cadence, ads and monetization model 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. OpenAir sells 3 one-off in-app purchases. OpenWindow asks for nothing beyond the download.
OpenWindow holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: OpenAir has 6 ratings behind it against 1, so its average is the more settled of the two.
OpenWindow ships an update every 3 days, OpenAir every 4 days. Both last shipped on October 26, 2026.
| Parameter | OpenWindow | OpenAir |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 4.7 (6 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 6 — better |
| Update frequency | Every 3 days — better | Every 4 days |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | Free |
| Devices | iPhone, iPad, Mac — better | iPhone, Apple Watch |
| Requires iOS | 26.0 | 26.0 |
| Further details — not scored | ||
| Size | 19 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | South Bay Compute, LLC | Smart Post App, LLC |
Customer experience
OpenWindow
OpenAir
In-app purchases
OpenWindow
No in-app purchases
OpenAir
- Small Tip$1.99
- Medium Tip$4.99
- Large Tip$9.99







