AnemoTracker vs Speed Tracker mach4
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.
Speed Tracker mach4
Measure the speed of objects using Doppler radar technology. This app accurately tracks speeds from 250 to 1250 m/s with precision better than 0.1%. Available on various Apple devices.
- Doppler radar speed measurement
- Speed range: 250-1250 m/s
- Accuracy better than 0.1%
- Supports Apple Watch, iPhone, iPad, iPod
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The speed Doppler radar cover 250 to 1250 m/s ( 820 - 3940 fps ) speed range with an accuracy better than 0.1 %
Screenshots
Verdict
The clearest difference is rating: Speed Tracker mach4 at 3.7 against AnemoTracker's 1.6. Speed Tracker mach4 also leads on review sentiment (50% vs 18%) and iOS requirement (9 vs 12.0). AnemoTracker's advantage is ratings volume (14 vs 3). On price, update cadence, 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.
Speed Tracker mach4 holds the better App Store score, 3.7 against 1.6. Both are backed by a comparable volume of ratings — 14 and 3 respectively. Written reviews point the same way: 18% of AnemoTracker's written reviews are positive against 50% of Speed Tracker mach4's.
AnemoTracker ships an update every 3 weeks, Speed Tracker mach4 every 6 weeks. The most recent releases landed on September 29, 2026 and September 13, 2026 respectively.
| Parameter | AnemoTracker | Speed Tracker mach4 |
|---|---|---|
| Price | Free | Free |
| Rating | 1.6 (14 ratings) | 3.7 (3 ratings) — better |
| Positive reviews | 17.9% of reviews | 50.0% of reviews — better |
| Number of ratings | 14 — better | 3 |
| Update frequency | Every 3 weeks — better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Apple Watch — better |
| Requires iOS | 12.0 | 9 — better |
| Further details — not scored | ||
| Size | 79 MB | 78 MB |
| Age rating | 4+ | 4+ |
| Developer | Calypso Instruments | nVisti |
Customer experience
AnemoTracker
Speed Tracker mach4
In-app purchases
AnemoTracker
No in-app purchases
Speed Tracker mach4
No in-app purchases
Questions
Is AnemoTracker free?
Is Speed Tracker mach4 free?
Which has better reviews, AnemoTracker or Speed Tracker mach4?
Do AnemoTracker or Speed Tracker mach4 have ads?
Which is updated more often, AnemoTracker or Speed Tracker mach4?
Other comparisons
