# QR Stopwatch vs ACT Head Impact Tracker

The clearest difference is price: ACT Head Impact Tracker at Free against QR Stopwatch's $3.99. ACT Head Impact Tracker also leads on rating (5.0 vs 3.3). QR Stopwatch's advantage is ratings volume (4 vs 1) and iOS requirement (8.0 vs 14.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

ACT Head Impact Tracker is free to download; QR Stopwatch costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ACT Head Impact Tracker holds the better App Store score, 5.0 against 3.3. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

QR Stopwatch ships an update every 4 months, ACT Head Impact Tracker every 6 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | QR Stopwatch | ACT Head Impact Tracker |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | [3.3 (4 ratings)](https://appshunter.io/ios/app/qr-stopwatch/id1019291106/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/act-head-impact-tracker/id6504392807/reviews)** |
| Number of ratings | **4** | 1 |
| Positive reviews | 55.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 6 months |
| Monetization | Paid | **Free** |
| Size | 3 MB | 8 MB |
| Requires iOS | **8.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ursin Tanner](https://appshunter.io/developer/977043903) | [Northern Sports Insight and Intelligence Oy](https://appshunter.io/developer/1752073752) |

## What reviewers say

### QR Stopwatch

[App page](https://appshunter.io/ios/app/qr-stopwatch/id1019291106)

This app enables timekeeping for multiple individuals, allowing for staggered starts or group events. It utilizes QR codes to automatically start, stop, or resume individual timers without manual input. The app can also generate rankings and export data for analysis.

**Highlights:** QR code time tracking, Individual and group timers, Automatic start/stop/resume, Ranking generation, CSV export, Manual timer intervention

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### ACT Head Impact Tracker

[App page](https://appshunter.io/ios/app/act-head-impact-tracker/id6504392807)

This app measures and tracks impacts and forces on the head during dry-land sports. It's designed for athletes, coaches, and teams to monitor head events across various levels and age groups.

**Highlights:** Impact and force measurement, Head event tracking, Versatile sports application, Suitable for individual athletes or teams, Supports all ages above 3, Affordable tracking device

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is QR Stopwatch free?

QR Stopwatch costs $3.99, with no in-app purchases.

### Is ACT Head Impact Tracker free?

ACT Head Impact Tracker is free to download, with no in-app purchases.

### Which has better reviews, QR Stopwatch or ACT Head Impact Tracker?

ACT Head Impact Tracker is rated higher. QR Stopwatch averages 3.3 out of 5 from 4 ratings, while ACT Head Impact Tracker averages 5.0 from 1 ratings.

### Do QR Stopwatch or ACT Head Impact Tracker have ads?

Neither QR Stopwatch nor ACT Head Impact Tracker shows ads.

### Which is updated more often, QR Stopwatch or ACT Head Impact Tracker?

QR Stopwatch ships an update every 4 months, and ACT Head Impact Tracker every 6 months. Most recently, QR Stopwatch was updated on October 24, 2026 and ACT Head Impact Tracker on October 24, 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.*