AnemoTracker vs E
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AnemoTracker
This app connects to a Bluetooth anemometer to display true and apparent wind data on your smartphone. It allows users to save their sailing or wind sports tracks with integrated wind measurements. Continued GPS use may impact battery life.
- Bluetooth anemometer connection
- True Wind display
- Apparent Wind display
- Track saving with wind data
- GPS integration
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A Wind Instrument in your Smartphone Connect to your bluetooth anemometer (calypsoinstruments.com) and get True Wind and Apparent Wind. Save your tracks with wind data. Continued use of GPS running in the background can lower battery life.
E
Easily create and edit dope cards for display on a smart card. This application utilizes NFC technology to transfer your custom data for permanent viewing.
- Create dope cards
- Edit drop tables
- NFC data transfer
- Permanent display on smart card
- iOS compatible
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Now available for iOS, The E-Dope application allows easy creation of dope cards using the DRS E-Dope SmartCard. The user can create and edit drop tables and the application uses NFC to send the data for permanent display on the E-Dope card.
Screenshots
Verdict
The clearest difference is rating: E at 2.9 against AnemoTracker's 1.6. E also leads on review sentiment (29% vs 18%). AnemoTracker's advantage is update cadence (every 3 weeks vs every 8 months) and iOS requirement (12.0 vs 14.4). 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.
E holds the better App Store score, 2.9 against 1.6. Both are backed by a comparable volume of ratings — 14 and 12 respectively. Written reviews point the same way: 18% of AnemoTracker's written reviews are positive against 29% of E's.
AnemoTracker ships an update every 3 weeks, E every 8 months. The most recent releases landed on September 19, 2026 and June 1, 2026 respectively.
| Parameter | AnemoTracker | E |
|---|---|---|
| Price | Free | Free |
| Rating | 1.6 (14 ratings) | 2.9 (12 ratings) — better |
| Positive reviews | 17.9% of reviews | 28.6% of reviews — better |
| Number of ratings | 14 — better | 12 |
| Update frequency | Every 3 weeks — better | Every 8 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 12.0 — better | 14.4 |
| Further details — not scored | ||
| Size | 79 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Calypso Instruments | Down Range Systems LLC |
Customer experience
AnemoTracker
E
In-app purchases
AnemoTracker
No in-app purchases
E
No in-app purchases
