Comparison

QR Stopwatch vs ACT Head Impact Tracker

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

QR Stopwatch

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
Read full description

Use this clever app for the timekeeping of several people, starting at different times or as group. It works without a single click - just show it any QR code to start a new stopwatch! HOW IT WORKS 1) SINGLE START: Use this clever app for the timekeeping of various persons, starting at different times. Simply hold the QR code in front of the scanner. The app will then automatically generate your name and a new individual stopwatch will be started. If you scan the code again, the timer stops. It’s also possible to resume the same watch again. 2) MASS START: If all participants are starting at the same time, then you should use the mass start mode. Start the stopwatch without any further adjustments and simply record the finishing time and the name of the runners when they reach the finish line. EXAMPLES OF USE - Reporting of working time. - Timekeeping of sporting events. - Report the students’ work time for special tasks. -> NO CLICKS Start the app and it will automatically take the time of all shown QR codes until you stop the scanner. -> NO TYPING OF NAMES The app automatically creates new items if a new QR code is shown. The name is whatever the QR code contains. -> GET A RANKING Choose the sort order: Would you like to know the fastest or slowest time? Decide if not-yet-stopped watches will be disqualified or stop all operating watches at once. -> SAVE AUTOMATICALLY Close the app and work on the same data the next day. All data is saved automatically. -> EXPORT Save and export rankings by email as .csv files. -> MANUAL INTERVENTION Use your finger to tap on a name to start a stopwatch manually. Tap again to stop it. As administrator you can also stop all running timers at the same time. If there is a person without QR code, it is possible to add a timer manually. -> CREATE MULTIPLE QR CODES ONLINE AT http://www.teaching-apps.com Simply type in all names/items at once and get multiple QR codes in a PDF, which you can then print and save. It couldn’t be any easier! Each QR code is embedded in a student ID card in a credit card size. These cards can be used for different apps and uses. Be sure to subscribe to the newsletter to receive updates on any new apps.

About

ACT Head Impact Tracker

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
Read full description

ACT Head Impact Tracker is simple, easy to use, versatile and affordable measuring and tracking device for impacts and forces acting on a head while doing sports. You can use it in virtually any sport, as long as it is done on a dry land. It is suitable to track one athlete, or team of athletes, in any level, gender and age group - as long as above 3 years old. ACT Head Impact Tracker is designed for athletes and their families, coaches, teams and clubs, to give more information what may have happened out there and to keep track on the events on a head.

Screenshots

QR Stopwatch4 screens
ACT Head Impact Tracker4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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

Scorecard5 real differences · 5 level
QR Stopwatch versus ACT Head Impact Tracker: the parameters behind the verdict, then further details
ParameterQR StopwatchACT Head Impact Tracker
Price$3.99Free — better
Rating3.3 (4 ratings)5.0 (1 ratings) — better
Positive reviews55.6% of reviews—
Number of ratings4 — better1
Update frequencyEvery 4 months — betterEvery 6 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS8.0 — better14.0
Further details — not scored
Size3 MB8 MB
Age rating4+4+
DeveloperUrsin TannerNorthern Sports Insight and Intelligence Oy

Customer experience

QR Stopwatch

All ratings4 ratings
Positive50.0%
Neutral25.0%
Negative25.0%
Written reviews9 reviews
Positive55.6%
Neutral11.1%
Negative33.3%

ACT Head Impact Tracker

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

QR Stopwatch

No in-app purchases

None

ACT Head Impact Tracker

No in-app purchases

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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