Comparison

Windmaster vs Air Quality

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

Head to head
About

Windmaster

This app provides detailed wind, wave, and tide forecasts for water sports enthusiasts. It allows users to compare multiple global forecast models, view live wind data from nearby stations, and receive personalized gear recommendations. Get alerted to optimal conditions and discover new spots worldwide.

Highlights
  • Masterforecast calibrated forecast
  • Global model comparison (GFS, ECMWF, ICON)
  • Live wind data from nearest stations
  • Hourly gear recommendations
  • Real tide curves
  • Wind alerts for saved spots
  • Interactive wind map
Features
Read full description

Windmaster is the wind, wave, and tide forecast built for people who dare to challenge the conditions. Kitesurfers, windsurfers, wingers, and surfers: stop refreshing five different apps and guessing whether your spot is going to fire. WHY WINDMASTER Masterforecast: highly accurate calibrated forecast for your spot. Global forecasts: access global models and compare them to elevate accuracy of predictions for what works best on your local spot. Compare the models GFS, ECMWF, ICON, AROME and more, side by side, so you can see how much the forecast actually agrees before you commit to the drive. Live wind from the nearest station Real ground-truth readings from weather stations near your spot, updated continuously, with a 6-hour trend so you can see it building or fading. The right gear, every hour Set your weight, skill, and quiver once, and Windmaster recommends the kite or sail size for every hour of the forecast. No more rigging the wrong gear. Real tides Actual tide curves for coastal spots, because timing the session matters as much as the wind. Wind alerts A morning heads-up the moment one of your saved spots is set to turn on. Never miss a good day again. Interactive wind map See the wind across the whole region at a glance, scrub through time, and find new spots near you. Hand-picked spots worldwide From Tarifa to Cape Town to Le Morne, with curated local detail on wind directions and conditions. WINDMASTER PRO Unlock every forecast model, the live 6-hour wind trend, and wind alerts. Start with a free trial, cancel anytime. Built by riders, for riders. See you on the water. Terms of Use (EULA): https://windmaster.app/terms Privacy Policy: https://windmaster.app/privacy-policy

About

Air Quality

Features
Read full description

Air Quality - SLOX is a clean, ad-supported viewer for real-time outdoor air-quality data powered by the public Open-Meteo Air-Quality API. Features: • Current AQI plus PM2.5, PM10, NO2, O3, CO, SO2 readings • Use your current location (with permission) or search any city worldwide • Save and quickly switch between favorite cities • 7 languages supported (English / 한국어 / 日本語 / 简体中文 / 繁體中文 / Español / Português) • Lightweight — works as long as you have an internet connection NOT a medical device. Readings are sourced from a third-party public dataset and may differ from official monitoring stations. Do NOT use this app for clinical decisions; consult a healthcare professional for respiratory or other medical concerns related to air quality.

Screenshots

Windmaster4 screens
Air Quality3 screens

Verdict

The call

The clearest difference is in-app purchases: Air Quality at none against Windmaster's 2. Air Quality also leads on update cadence (every 2 days vs fortnightly) and device support (3 vs 1). Windmaster's advantage is ads (none vs shown). On price 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. Windmaster sells 2 in-app purchases, starting at $1.99 per month. Air Quality asks for nothing beyond the download.

UpkeepUpdate frequency

Windmaster ships an update fortnightly, Air Quality every 2 days. The most recent releases landed on November 10, 2026 and November 5, 2026 respectively.

Scorecard5 real differences · 5 level
Windmaster versus Air Quality: the parameters behind the verdict, then further details
ParameterWindmasterAir Quality
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyFortnightlyEvery 2 days — better
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS17.013.0 — better
Further details — not scored
Size26 MB23 MB
Age rating4+4+
DeveloperSwipe Up B.V.SEOKWON YANG

In-app purchases

2 purchases

Windmaster

Subscriptions2
  • Yummy Pro Monthly14 Days trial$1.991 Month
  • Windmaster Pro Yealry14 Days trial$8.991 Year
None

Air Quality

No in-app purchases

Questions

Is Windmaster free?
Windmaster is free to download, with in-app purchases available.
Is Air Quality free?
Air Quality is free to download, with no in-app purchases.
Do Windmaster or Air Quality have ads?
Air Quality shows ads; Windmaster does not.
Which is updated more often, Windmaster or Air Quality?
Windmaster ships an update fortnightly, and Air Quality every 2 days. Most recently, Windmaster was updated on November 10, 2026 and Air Quality on November 5, 2026.

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