Comparison

simpWeather vs OpenWindow

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

simpWeather

Features
Read full description

simpWeather is a clean, fast weather app that tells you what matters in plain words — and shows every detail when you want it. FORECAST AT A GLANCE • Current conditions, high and low, and "feels like" • A short summary: when the rain starts and stops, strong gusts, the high-UV window, whether tomorrow is warmer or colder • 24-hour forecast with sunrise and sunset right in the timeline • 7-day forecast with temperature range bars on a shared weekly scale EVERY DETAIL, HOUR BY HOUR Tap any tile to open an interactive chart for any day of the week. Drag your finger to read the exact value at any hour. • Temperature and feels like, with heat-stress warnings • Precipitation per hour and daily total, rain and snow • Wind speed and gusts, direction and Beaufort force • UV index with the hours you need sun protection • Humidity and dew-point comfort • Pressure with its trend • Visibility and cloud cover • Air quality: US EPA and UK DEFRA indexes, 8 pollutants, health advice and an hourly forecast • Sun: daylight length and its change, solar radiation SUN AND MOON Daylight arc, moonrise and moonset, and a beautiful moon calendar with phases for any month. WIDGETS Small, medium and large Home Screen widgets and Lock Screen widgets. Widgets share the app's forecast, so they stay useful even without internet. YOUR CITIES Search and save cities, reorder them, and see the weather and local time for each at a glance. Severe weather alerts show urgency, areas and what to do. MADE FOR YOU • Units your way: choose temperature, wind, pressure, precipitation and distance separately — or follow your iPhone settings • Works offline with the last forecast • Large text, VoiceOver charts, Reduce Motion and higher contrast are supported • English, Russian and Kazakh Weather data: WeatherAPI.com.

About

OpenWindow

This app provides clear, practical recommendations on whether to open your windows or go outside. It combines local weather and air-quality data into simple guidance for everyday decisions.

Highlights
  • Window and outdoor activity recommendations
  • Hourly weather and air quality outlooks
  • Local and manual location search
  • Saved default location
  • Unit preferences
  • Light and dark mode
Features
Read full description

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.

Screenshots

simpWeather3 screens
OpenWindow4 screens

Verdict

The call

The clearest difference is ads: OpenWindow at none against simpWeather's shown. OpenWindow also leads on update cadence (every 3 days vs every 3 months) and device support (3 vs 1). simpWeather's advantage is iOS requirement (17.0 vs 26.0). On price and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

simpWeather ships an update every 3 months, OpenWindow every 3 days. The most recent releases landed on October 28, 2026 and November 5, 2026 respectively.

Scorecard4 real differences · 5 level
simpWeather versus OpenWindow: the parameters behind the verdict, then further details
ParametersimpWeatherOpenWindow
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 3 monthsEvery 3 days — better
AdsYesNo — better
In-app purchasesNoNo
Monetization—Free
DevicesiPhoneiPhone, iPad, Mac — better
Requires iOS17.0 — better26.0
Further details — not scored
Size6 MB18 MB
Age rating4+4+
DeveloperAnton GmyzinSouth Bay Compute, LLC

In-app purchases

None

simpWeather

No in-app purchases

None

OpenWindow

No in-app purchases

Questions

Is simpWeather free?
simpWeather is free to download, with no in-app purchases.
Is OpenWindow free?
OpenWindow is free to download, with no in-app purchases.
Do simpWeather or OpenWindow have ads?
simpWeather shows ads; OpenWindow does not.
Which is updated more often, simpWeather or OpenWindow?
simpWeather ships an update every 3 months, and OpenWindow every 3 days. Most recently, simpWeather was updated on October 28, 2026 and OpenWindow on November 5, 2026.

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