C4Timekeeper vs Rallycheck Scanner
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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
Rallycheck Scanner
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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
Verdict
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
Both are free to download. C4Timekeeper sells 3 one-off in-app purchases. Rallycheck Scanner asks for nothing beyond the download.
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.
| Parameter | C4Timekeeper | Rallycheck Scanner |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 10 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | Filippo Gozza | iSource BV |
In-app purchases
C4Timekeeper
- Full version for one month$4.99
- Full version for 6 months$8.99
- Full version for one year$13.99
Rallycheck Scanner
No in-app purchases
Questions
Is C4Timekeeper free?
Is Rallycheck Scanner free?
Do C4Timekeeper or Rallycheck Scanner have ads?
Which is updated more often, C4Timekeeper or Rallycheck Scanner?
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