AIR OTG vs Relative Wind Compass
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
AIR OTG
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Get to know the air that you breathe! Smart customizable alerting system. Air Health Awareness pairs with your AIR_OTG Indoor Portable Air Quality Monitor to help you understand and manage your indoor air quality. Its smart alerting system is customizable to fit any indoor environment. Features: Summarize indoor environmentsβ air health and safety conditions in real-time. Indoor Air Quality index (IAQI) based on EPA guidelines Indoor Meteorological Conditions Index (MCI) based on the international science communityβs latest research leveraged during the Coronavirus Pandemic. Health risks alerting system comprised of international color coding, messaging and buzzer warnings Air Health Recommendations Measures
Relative Wind Compass
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THE WIND, RELATIVE TO YOU. Most weather apps tell you the wind is from 270Β°. Relative Wind Compass shows you an arrow pointing where the wind is coming from, relative to where you're facing right now. Turn, and the arrow moves. Cross-reference with your runway, your treestand, your firebreak, your launch site, no mental math. Built by a student pilot for anyone who needs the wind on the ground. NINE MODES, ONE ARROW β’ BASIC β Just the wind. Direction, speed, the relative arrow. Nothing else. β’ FLIGHT β Headwind and crosswind components for any runway. METAR plus winds aloft, density altitude, Zulu time, heading bug. β’ HUNTING β Scent-direction compass, sunrise countdown, moon phase, still-air indicator, wind-shift alerts. β’ BURNING β Fire-spread direction, gust delta, relative humidity and temperature, a tap-to-copy dispatch radio call, and a red banner when conditions move out of prescription. β’ SAILING β Apparent wind when you're moving, Beaufort force, point of sail, veer/back detector. β’ DRONE β Go / Caution / No-Go from your aircraft's wind and gust limits. DJI, Skydio, and Autel presets built in. β’ FREE FLIGHT β Flyable / Marginal / No-Fly status, optional launch-direction alignment for paragliders and hang gliders. β’ HOT AIR BALLOON β Winds-aloft layers (3k, 6k, 9k, 12k ft) shown directly. Steering hints when the layers diverge. β’ MARINE β Beaufort plus sea state, small-craft, gale, and storm advisories. APPLE WATCH The full relative-wind dial on your wrist. A complication for the watch face so you can glance at the wind without unlocking your phone. The watch and phone keep each other in sync. IPHONE DUO Unfold it and the arrow gets half the screen, with speed, gusts and your mode's details on the other half. Half-fold it like a laptop and the arrow stands up top. Closed, the cover screen shows the compass you know. WEATHER YOU CAN TRUST Live surface conditions come from Apple's WeatherKit. Airport METARs and winds-aloft forecasts come from the FAA's aviationweather.gov. Barometric pressure reads from your iPhone's built-in altimeter. Everything is true-referenced, not magnetic. ALERTS, FORECAST, FEELS-LIKE Active National Weather Service alerts, Red Flag warnings for burn crews, Small Craft Advisories for sailors, severe-weather alerts for everyone β surface at the top of every screen. A one-hour wind forecast lives next to the live reading. Wind chill and heat index update with the data. YOUR UNITS, YOUR CALL Knots, mph, or m/s. Feet or meters. Zulu or local time. Cardinal points or true degrees. Set it once. PRIVACY No account. No tracking. No analytics. Your location stays on your device, it is used only to fetch weather for where you are. For pilots, hunters, prescribed-burn crews, sailors, drone operators, paraglider and hang glider pilots, balloon crews, and anyone on the water. For anyone who needs to know where the wind is coming from, relative to where they're standing, without doing the geometry in their head.
Screenshots
Verdict
The clearest difference is iOS requirement: AIR OTG at 13 against Relative Wind Compass's 26.0. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | AIR OTG | Relative Wind Compass |
|---|---|---|
| Price | Free | Free |
| Update frequency | β | Every 5 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, Apple Watch β better |
| Requires iOS | 13 β better | 26.0 |
| Further details β not scored | ||
| Size | 14 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Baby Alert International Inc | Jared Kaeb |
In-app purchases
AIR OTG
No in-app purchases
Relative Wind Compass
No in-app purchases
Questions
Is AIR OTG free?
Is Relative Wind Compass free?
Do AIR OTG or Relative Wind Compass have ads?
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