Wind Reader vs Erg
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Wind Reader
This application calculates real-time wind speed for long-range shooting using the Eagleman Technique. It leverages your phone's inclination sensor to convert mirage and rain angles into accurate wind speed measurements, a method patented in the US.
- Real-time wind speed calculation
- Eagleman Technique implementation
- Uses phone inclination sensor
- Converts mirage and rain angles
- Patented wind reading method
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Wind reading for long range shooting. This app uses the Eagleman Technique. The phone's inclination sensor is used to convert mirage and rain angles to wind speed. The Eagleman Technique was developed by James Eagleman in 1992 to provide real-time wind speed based on mirage/rain angles and percentages. The method has a US Patent. James Eagleman is the master instructor for the Barbour Creek Long Range School (http://barbourcreek.com).
Erg
Enhance your rowing technique with AI-powered video analysis and track your progress. Compete on leaderboards, connect with teammates through group chat, and build a strong rowing community. Train smarter and improve faster with this comprehensive platform.
- AI-powered rowing analysis
- Leaderboard rankings
- Group chat and community
- Create and join groups
- Workout history and progress tracking
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Erg Connect is your all-in-one platform for improving your rowing technique, tracking progress, competing on leaderboards, and staying connected with your teammates. Whether you're training solo or with a group, this app helps you row smarter, improve faster, and build a strong rowing community! Key Features AI-Powered Rowing Analysis – Upload or record a video to receive instant technique feedback. Leaderboard Rankings – Compete against teammates and track your performance. Group Chat & Community – Stay connected, discuss workouts, and share tips with fellow rowers. Create & Join Groups – Train together, compare stats, and build team spirit. Workout History & Progress Tracking – Monitor your workouts, analyze trends, and stay on top of your fitness journey.
Screenshots
Verdict
The clearest difference is review sentiment: Erg at 100% against Wind Reader's 0%. Erg also leads on rating (5.0 vs 4.0). Wind Reader's advantage is update cadence (weekly vs every 2 months). On price, ratings volume, ads 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Erg holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 5 and 2 respectively. Written reviews point the same way: 0% of Wind Reader's written reviews are positive against 100% of Erg's.
Wind Reader ships an update weekly, Erg every 2 months. The most recent releases landed on September 23, 2026 and October 2, 2026 respectively.
| Parameter | Wind Reader | Erg |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (5 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 5 — better | 2 |
| Update frequency | Weekly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 | 14.0.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 44 MB |
| Age rating | 17+ | 4+ |
| Developer | James Eagleman | Coding Minds, Inc. |
Customer experience
Wind Reader
Erg
In-app purchases
Wind Reader
No in-app purchases
Erg
No in-app purchases
