Comparison

C4Timekeeper vs Rallycheck Scanner

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

Head to head
About

C4Timekeeper

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Stopwatch for timekeeper This app is a stopwatch for timekeeper of Oldtimer Rallye This app replaces the expensive stopwatch of Oldtimer Rally organizer. This app can be used by the timekeeper for the secret time control. On the external Bluetooth button (can be me ordered ) a photocell can be connected. A printer is not necessary, because you can send the times by e-mail to the organizers. Thus, need for evaluations, the organizers do not wait until the timer to come back. Synchronization of the clock: 1. Manually, using as a reference the time of the organizers. 2. GPS, using the satellite time. 3. The atomic time, using one of the many global or regional server. Functions: You can use for the Stop, the green software button "Start". For the Stop can also be used with an external bluetooth-button. The button works with all iPad e iPhone. Important! A photocell can at the input for the button to be connected (the contact is open). The external button, you can order from me, price see at https://filippo-software.de. Limitations of the Free-version: * A maximum. 5 times to stop. Supported languages: German, Italian, English

About

Rallycheck Scanner

Features
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The Rallycheck Scanner lets participants easily register themselves at a Time Control by scanning a personal QR code. The Scanner seamlessly integrates with the Rallycheck Platform. The times registered by the participants are automatically sent to the Rallycheck server, where they are stored and processed by the result-calculation. [:mav: 1.0.7]

Screenshots

C4Timekeeper4 screens
Rallycheck Scanner2 screens

Verdict

The call

The clearest difference is in-app purchases: Rallycheck Scanner at none against C4Timekeeper's 3. Rallycheck Scanner also leads on update cadence (every 2 weeks vs every 2 months) and iOS requirement (13.0 vs 16.0). On price, ads 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

Both are free to download. C4Timekeeper sells 3 one-off in-app purchases. Rallycheck Scanner asks for nothing beyond the download.

UpkeepUpdate frequency

C4Timekeeper ships an update every 2 months, Rallycheck Scanner every 2 weeks. The most recent releases landed on October 8, 2026 and September 29, 2026 respectively.

Scorecard3 real differences · 3 level
C4Timekeeper versus Rallycheck Scanner: the parameters behind the verdict, then further details
ParameterC4TimekeeperRallycheck Scanner
PriceFreeFree
Update frequencyEvery 2 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.013.0 — better
Further details — not scored
Size10 MB28 MB
Age rating4+4+
DeveloperFilippo GozzaiSource BV

In-app purchases

3 purchases

C4Timekeeper

One-time3
  • Full version for one month$4.99
  • Full version for 6 months$8.99
  • Full version for one year$13.99
None

Rallycheck Scanner

No in-app purchases

Questions

Is C4Timekeeper free?
C4Timekeeper is free to download, with in-app purchases available.
Is Rallycheck Scanner free?
Rallycheck Scanner is free to download, with no in-app purchases.
Do C4Timekeeper or Rallycheck Scanner have ads?
Neither C4Timekeeper nor Rallycheck Scanner shows ads.
Which is updated more often, C4Timekeeper or Rallycheck Scanner?
C4Timekeeper ships an update every 2 months, and Rallycheck Scanner every 2 weeks. Most recently, C4Timekeeper was updated on October 8, 2026 and Rallycheck Scanner on September 29, 2026.

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