# Airsoft Pro Sensor vs Speed Tracker mach4

The clearest difference is update cadence: Airsoft Pro Sensor at every 3 weeks against Speed Tracker mach4's every 6 weeks. Speed Tracker mach4's advantage is device support (4 vs 2) and iOS requirement (9 vs 12.1). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Airsoft Pro Sensor ships an update every 3 weeks, Speed Tracker mach4 every 6 weeks. The most recent releases landed on September 13, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | Airsoft Pro Sensor | Speed Tracker mach4 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.7 (3 ratings)](https://appshunter.io/ios/app/speed-tracker-mach4/id6446348164/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 6 weeks |
| Monetization | — | Free |
| Size | 15 MB | 78 MB |
| Requires iOS | 12.1 | **9** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [UD Tek, Tov](https://appshunter.io/developer/1083925715) | [nVisti](https://appshunter.io/developer/1058574940) |

## What reviewers say

### Airsoft Pro Sensor

[App page](https://appshunter.io/ios/app/airsoft-pro-sensor/id1555651501)

**Features:** macOS Compatibility

**In-app purchases:** none


### Speed Tracker mach4

[App page](https://appshunter.io/ios/app/speed-tracker-mach4/id6446348164)

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.

**Highlights:** Doppler radar speed measurement, Speed range: 250-1250 m/s, Accuracy better than 0.1%, Supports Apple Watch, iPhone, iPad, iPod

**In-app purchases:** none


## Frequently asked questions

### Is Airsoft Pro Sensor free?

Airsoft Pro Sensor is free to download, with no in-app purchases.

### Is Speed Tracker mach4 free?

Speed Tracker mach4 is free to download, with no in-app purchases.

### Do Airsoft Pro Sensor or Speed Tracker mach4 have ads?

Neither Airsoft Pro Sensor nor Speed Tracker mach4 shows ads.

### Which is updated more often, Airsoft Pro Sensor or Speed Tracker mach4?

Airsoft Pro Sensor ships an update every 3 weeks, and Speed Tracker mach4 every 6 weeks. Most recently, Airsoft Pro Sensor was updated on September 13, 2026 and Speed Tracker mach4 on June 1, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*