True Wind Pro vs Odd Weather
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
True Wind Pro
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True Wind Pro is a precise nautical wind calculator and training tool designed for sailors, navigators, and marine students. Convert apparent wind into true wind direction and speed using the classic nautical-school vector method — clearly visualized and easy to understand. Key Features • True wind direction (TWD) and speed (TWS) calculation • Apparent wind (AWA / AWS) support • Atmospheric pressure readings using the iPhone’s built-in barometer sensor • Pressure history with date and time • Easy access to pressure, wind direction, and wind force values for entering into the ship’s deck logbook on the bridge • Interactive radar and wind triangle plot • Step-by-step vector construction (nautical-school method) • Reverse calculator: find heading for a target apparent wind angle • Beaufort scale interpretation • Clean, distraction-free interface optimized for marine use Designed for Learning & Practice True Wind Pro doesn’t just give you numbers — it shows how the result is constructed. Perfect for sailing schools, exam preparation, and real-world navigation planning. The app also helps with practical bridge routines by making atmospheric pressure, wind direction, and wind force easy to check and enter into the ship’s deck logbook. Free & Pro You can perform 5 free calculations to try the app. Unlock True Wind Pro – Lifetime to get unlimited calculations forever with a one-time purchase. No subscriptions. No ads. Ideal for sailors, skippers, students, navigators, and anyone who wants to truly understand wind mechanics at sea.
Odd Weather
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Odd Weather gives you a clean, playful way to check the forecast without the usual weather-app clutter. Swipe through daily forecasts, pull down to search for another city, and tap the weather illustration to switch between Celsius and Fahrenheit. Each day includes current conditions, high and low temperatures, hourly details, and tiny advice for things like golf, boating, outfits, and general “maybe don’t do that” weather situations.
Screenshots
Verdict
The clearest difference is in-app purchases: Odd Weather at none against True Wind Pro's 1. True Wind Pro's advantage is update cadence (every 2 weeks vs every 2 months) and iOS requirement (15.1 vs 17.0). On price, ads 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. True Wind Pro sells 1 one-off in-app purchase. Odd Weather asks for nothing beyond the download.
True Wind Pro ships an update every 2 weeks, Odd Weather every 2 months. Both last shipped on October 31, 2026.
| Parameter | True Wind Pro | Odd Weather |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 59 MB | 45 MB |
| Age rating | 4+ | 9+ |
| Developer | Paulina Praciak | TIM KJELL JEPPSSON |
In-app purchases
True Wind Pro
- Unlimited Calculations$1.99
Odd Weather
No in-app purchases









